Answer:
x=7
Step-by-step explanation:
3(-9 - 4x) - 4= 8x - 9(x + 12)
distribute
-27-12x-4=8x-9x-108
combine like terms
-31-12x=-x-108
add x to both sides
-31-12x+x-108
add 31 to both sides
-12x+x=-108+31
combine like terms
-11x=-77
divide both sides by -11
x=7
