pls help! easy questiom | Mathematics | Page 1

wet wedgeBOT May 9, 2023, 2:59 PM

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void quarry May 9, 2023, 3:04 PM

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Question: What do you mean by y?

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1.5 times x is 1.5x

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so 1.5x(x+3)

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multiply 1.5x with both values

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so 1.5x

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squared

tardy wigeon May 9, 2023, 3:04 PM

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?-

void quarry May 9, 2023, 3:04 PM

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+3x

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=0

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-3x = 1.5x squared

tardy wigeon May 9, 2023, 3:05 PM

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Omg

void quarry May 9, 2023, 3:05 PM

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If i'm not mistaken that's impossible?

tardy wigeon May 9, 2023, 3:06 PM

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X = 1,5

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X = -3

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Two solutions

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Wait no

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Wrong questions

void quarry May 9, 2023, 3:06 PM

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???

tardy wigeon May 9, 2023, 3:06 PM

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is that 1.5x?

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A = 5

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B = 4

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How did u do it-

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The equations x = 2

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Y = 1

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So what solution is the equation equal to

void quarry May 9, 2023, 3:07 PM

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Wait bro

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You wrote

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(1.5x) times (x+3)

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so 1.5x times (x+3

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)

tardy wigeon May 9, 2023, 3:08 PM

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LMAOO

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OMG

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wtf is wrong w me

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Thats the wrong question again

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Omg wait

void quarry May 9, 2023, 3:08 PM

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1.5x squares + 4.5x

tardy wigeon May 9, 2023, 3:08 PM

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The equation system is

void quarry May 9, 2023, 3:08 PM

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no 3. sorry

tardy wigeon May 9, 2023, 3:08 PM

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Ax + by = 14

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Ax - 2by = 2

void quarry May 9, 2023, 3:09 PM

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nvm

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I gotta figure out my own problem

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I'm having huge issues with it

tardy wigeon May 9, 2023, 3:11 PM

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Ax + by = 14
Ax - 2by = 2
What numbers should stand in place of a and b so that the system of equations ax + by = 14 ax - 2by

must have the solution y = 1, 2 x = 2

tardy wigeon May 9, 2023, 3:28 PM

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ok i got your mean

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you mean
ax+by=14
ax-2by=2
's solutions are x=2 y=1 right?

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and find a and b

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use x=2 and y=1 take x and y's place then you will get a new system of equations

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find a and b then

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I cant find a and b

tardy wigeon May 9, 2023, 3:32 PM

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tardy wigeon use x=2 and y=1 take x and y's place then you will get a new system of equations

you stuck at here?

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No

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You don't know how to solve binary linear equations

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Ok so after that

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I put out

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The x y

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2a+b = 2a -2?

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Oh wait

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You can't think of it as an algebraic expression then you will only find what does a= or b=

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So 2a+b + 2a - 2 = 16

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4a +b=18

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How the hell do i do now

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but then how you solve it

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ok there is another way

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How do i solce 4a + b = 18

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by the first equation we can know 2a+b=14

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then b=?

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We dont know b?

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use algebraic expressions containing a to represent b

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How do i do that

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b=14-2a

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B= 14-2a?

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Oh

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yep

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But in equation systems arent u suppose to do the way i did

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You need to first find a way to eliminate the term containing b and convert the equation into one unknown number

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btw i am not a native speaker so sorry

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but your way is also ok

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just do

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2(2a+b)+2a-2b=16

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then b is disappear

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Theres still b’s

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In there

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I think ur suppose to do 2a(14-a)

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what is 2b-2b

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Oh

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But what happen to the conversion

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14-2a

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= b

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ok lets back to the first way we talked about then we back to this

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these are two ways

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you found b=14-2a

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then use this take b's place in the second equation

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you can find a then

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and put a into b=14-2a you will find a

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so the problem is solved

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Oh

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Is 4b the same as

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^4

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you mean b=4?

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No

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I got 84A = 16

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find where is wrong

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in your ways

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Omg i solved it

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6 = a right?

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OMG

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YES

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LETs test

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IMFGGHH

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YESSSSSSSSSSS IT WORKED

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no..

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a=5

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No i tried it its 6

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how about b

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B is 2

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lets check it

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wait

brazen parrot May 9, 2023, 4:03 PM

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What’s wrong?

tardy wigeon May 9, 2023, 4:03 PM

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it is right in the first one

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2x6-2x2=8≠2

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so it is wrong

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Huh how is it wrong

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2a = 12

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B = 2

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2a + b = 14

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14 - 4 = 10

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Wtf

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The final result MUST satisfy ALL the equations that make up the system of equations

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How tf is it 5

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how did you solve it?

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10 + 5 ≠ 14

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maybe write down on your paper please?

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I did like u did

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But 10 + 5 ≠ 14

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The problem is I don't know where you did wrong

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But a isnt 5 still

tardy wigeon May 9, 2023, 4:07 PM

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tardy wigeon But 10 + 5 ≠ 14

.

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Please. Write what you did on the paper. I am sorry

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show your work clearly

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Something like this.

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Look at the left

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Not right

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oh i know

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you wrote 14 as 16

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2+14 = 16

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my bad

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Those two are bc of two equation summaries

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I combined both systems

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you put that into the second one but you forgot there is a -2 in front of b

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that means -2 times (14-2a)

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But try adding 5 = a in the second equation

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It doesnt work!

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Or nvm the answer is 5

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your b isnt correct

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b=14-2a

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Now your a =5

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what does 14-2*5 equals to?

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4

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Yes

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So u did one equation at a time

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Not both combined like me?

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I used the first one to know b=14-2a

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put this in the second one you found a. there is no need for you to use the first one again

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So u didnt combine both equations

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Oh

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Well its very usual to combine both

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because you already know b=14-2a just use 5 take a's place in this algebraic formula

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In equation systems

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Omg wait

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https://youtu.be/XUvdf4ZLkGI

YouTube

Brian McLogan

How do we solve a system of linear equations using any method

http://www.freemathvideos.com Learn how to solve a system of equations by using any method such as graphing, elimination and substitution. 7x+5y= -12, 3x-4y=1

▶ Play video

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there is another way..

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13 = a

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Lol-

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minus.

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Nah i either get 6 or 13

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Wdym minus

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2a MINUS 2b

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Oh-

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See this is why i hate math

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2a-2(14-2a)

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Oh

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Oh

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Now i got 30/4

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Wait

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No

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you forgot use -2 times 2a

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Yea

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Ok now i solved it

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Thank u so much

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np

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This is my next question

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No wait the diameter is 12

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ok

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dms

#pls help! easy questiom