5(x - 4) + 3x = 12
x = 4
3(x + 5) - 5x = - 7
x = 11
-3( x + 9) + 15 = -12
x = 0
-4(x - 3) + 6x + 5 = 7
x = -5
-8(x - 3) + 7x - 14 = 4
x = 6