Answer:
x = -4
Explanation:
2x + 4(2x+7) = 3(2x+4)
distributive property first
2x + 8x + 28 = 6x + 12
now combine like terms
10x + 28 = 6x + 12
now move the +28 over to the other side by subtraction
10x = 6x -16
move the 6x over by subtraction
4x = -16
divide by 4
x = -4