1) 13(x+6) - 72 = 12313x + 78 - 72 = 12313x + 6 = 12313x = 117x = 117/13x = 9
2) 77 + 8(x-5) = 12577 + 8x - 40 = 1258x + 37 = 1258x = 88x = 88/8x = 11
1) 13(x+6) - 72 = 123
13x + 78 - 72 = 123
13x + 6 = 123
13x = 117
x = 117/13
x = 9
2) 77 + 8(x-5) = 125
77 + 8x - 40 = 125
8x + 37 = 125
8x = 88
x = 88/8
x = 11