Question

9(x + 2) = 3(x - 2)
x =
3(x - 6) + 2 = 4(x + 2) - 21
x =

Answer 1

First distribute the outside number.
9(x + 2) = 3(x - 2)
9x + 18 = 3x - 6

Then get the variable by itself.

9x + 18 = 3x - 6
6x + 18 = -6
6x = -24
x= -4

Now to plug it in:
9(-4 + 2) = 3(-4 - 2)
9(-2) = 3(-6)
-18 = -18

Therefore, for problem 1, x = -4