i need help with test review | Mathematics | Page 1

quiet tangleBOT Mar 23, 2023, 12:14 AM

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clear roost Mar 23, 2023, 12:14 AM

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This needs to be solved with elimination method

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and this needs to be solved with substitution method

clear roost Mar 23, 2023, 1:36 AM

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<@&286206848099549185>

halcyon pond Mar 23, 2023, 1:53 AM

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for the substitution replace the isolated variable with the equation it's equal to in the second equation

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elimination revolves around getting rid of a variable by multiplying it by something that can eliminate the variable keeping only one variable so you can eventually substitute

clear roost Mar 23, 2023, 2:15 AM

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can you explain it in steps

clear roost Mar 23, 2023, 3:20 AM

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halcyon pond for the substitution replace the isolated variable with the equation it's equal ...

so in

y = 6 - 2x
2x - y = -2

Sub eq1 into 2 so its
2x - 6 - 2x = -2

and then the next step would be??

halcyon pond Mar 23, 2023, 3:21 AM

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yes

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well i think u did the second equation wrong

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it would be 2x - (6-2x)
which equals to 2x -6 + 2x

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then you solve for x

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then you replace the value of x with the variable x so you can solve for y

clear roost Mar 23, 2023, 3:23 AM

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2x - (6-2x) = -2
2x -6 + 2x = -2

^ doesnt this need to give a y value

halcyon pond Mar 23, 2023, 3:44 AM

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you have to solve

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like find what x is

clear roost Mar 27, 2023, 2:39 AM

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.close

#i need help with test review