Question

Solve for x: 3(x + 1) = -2(x - 1) - 4.

1). 1
2).-1
3).-5
4).-25

Answer 1

so any ideas on how to begin? What have you tried so far?

Answer 2

I came up with -5. But i have a feeling its completely wrong.

Answer 3

ok, so do you want to learn how to check that with me?

Answer 4

its not hard

Answer 5

:)

Answer 6

3(1 + x) = -2(x + -1) + -4
(1 * 3 + x * 3) = -2(x + -1) + -4
(3 + 3x) = -2(x + -1) + -4

Answer 7

3 + 3x = -2(-1 + x) + -4
3 + 3x = (-1 * -2 + x * -2) + -4
3 + 3x = (2 + -2x) + -4

Answer 8

that is correct so far

Answer 9

good to there too

Answer 10

I like that you use plus a negative 1

Answer 11

I got the answer I just made a little mistake. Thank you for making me realize it. The answer is -1.

Answer 12

no problem, and if you ever want a quick check on your own just substitute what you get back in for your variable, then you know if you made a math error