Answer:
x=-8
Explanation:
4 − 2(7 + 8x) = 12 − 6(2x − 7) + 4x
distribute
4 - 2*7 -2*8x = 12 -6*3x -6(-7) +4x
4 - 14 -16x = 12 -12x+42 + 4x
combine like terms
-10 -16x = 54 - 8x
add 16x to each side
-10 -16x+16x =54-8x+16x
-10 = 54 +8x
subtract 54 from each side
-10-54 = 54-54 +8x
-64 = 8x
divide by 8
-64/8 = 8x/8
-8 = x