8(-2x - 4) + 12 = -60
using distributive property gives -16x - 32 + 12 = -60
collecting like terms gives -16x - 20 = -60
multiply by -1 on both sides gives 16x + 20 = 60
subtracting 20 on both sides gives 16x = 40
divide both sides by 16 gives x = 40/16 or 5/2