Arithmetic Help

[cosmic kettle]

(3-x), (2x), and (3x+1) are the first three terms of an arithmetic progression. If (6x-k) is the sixth term, then k is equal to

A. -3
B. 5
C. 2
D. -4

[upper river]

@cosmic kettle

Find how to get from one term to the next

And set the differences equal to each other

To get x

[cosmic kettle]

Here's my solution

got 12 but it's not in any of the choices below ;c

[upper river]

You are basically there

How did u turn k-12 into k=12?

[cosmic kettle]

transpose right?

[upper river]

No

Plug the x in

To get the terms

[cosmic kettle]

oh

[upper river]

Then you can find the 6th term

[cosmic kettle]

aight ill try

[upper river]

What you did is 12 - k = 0

12 - k = 6th term

Tell me what you get

[cosmic kettle]

my 6th term is 16

but i don't know how to get the value of k

[upper river]

This

[cosmic kettle]

wait so -4?

[upper river]

Yes

[cosmic kettle]

yeyyyy

thankss

[upper river]

Welcome