Answer:

Explanation:
Given equation
12 = -4(-6x - 3)
Divide -4 on both sides
12 / (-4) = -4(-6x - 3) / (-4)
-3 = -6x - 3
Add 3 on both sides
-3 + 3 = -6x - 3 + 3
0 = -6x
Divide -6 on both sides
0 / -6 = -6x / -6

Hope this helps!! :)
Please let me know if you have any questions