Question

Solve.
3(x + 1) - 2x = -6.
A)
x = 1
B)
x = 5
Eliminate
C)
x = -7
D)
x = -9

Answer 1

First, why don't we get rid of them parentheses. That will make it cleaner looking, right? :)

Answer 2

3(x + 1) - 2x = -6.
3x+3-2x=-6
Woo, looks A LOT better now. So, we want to solve for 'x'. We want 'x' by itself. Lets work on that, shall we?

Answer 3

3x+3-2x=-6
Lets get that +3 away.
3x+3-3-2x=-6+3
3x-2x=-3

Answer 4

Now, we have like terms on each side, the 'x' isn't mixed up with any numbers that do not have the 'x' terms. Lets continue with 3x-2x=-3
So now we will subtract the 3x-2x because they are like terms..
That will yield '1x' or simply 'x'
So x=-3

Answer 5

Hmm, but that isn't an answer..

Answer 6

Well.. Since that didn't work, we will plug-and-chug.

Answer 7

okay!

Answer 8

The answer is D, I guess. Just plug in what x=n, into the original equation. I shall show you

Answer 9

k thx.

Answer 10

\[3(x + 1) - 2x = -6. : 3(-9+1)-2(-9)=-6\]

Answer 11

Sorry for the junk before. Not sure why it didn't yield the answer before.