(14-x)*50 = 300700 - 50x = 300-50x = -400x = 8
y : 9 + 48 = 60y : 57 = 60y = 60 * 57y = 3420
72 - 56 : z = 6416 : z = 6416z = 64z = 4
(14-x)*50 = 300
700 - 50x = 300
-50x = -400
x = 8
y : 9 + 48 = 60
y : 57 = 60
y = 60 * 57
y = 3420
72 - 56 : z = 64
16 : z = 64
16z = 64
z = 4