16x + 5 = 13316x = 133 - 516*x = 128x = 128/16x = 8
8y5 = 56*540y = 280y = 280/40y = 7
158c + 45 - 12 = 78158c + 33 = 78158*c = 45c = 45/158
16x + 5 = 133
16x = 133 - 5
16*x = 128
x = 128/16
x = 8
8y5 = 56*5
40y = 280
y = 280/40
y = 7
158c + 45 - 12 = 78
158c + 33 = 78
158*c = 45
c = 45/158