What is the value of x?

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

x = - 2

Step-by-step explanation:

To start, let's add on the first side to get 3x + 6x - 6 = 9x - 6. For the second side, we need to distribute the 4 to get 4 (2x) + 4 (-2), or 8x + (-8) or 8x - 8. Setting these equal, we subtract 8x from both sides to get x - 6 = - 8, and adding 6 to both sides gives x = - 2.