Ответы и объяснения

2013-11-20T11:58:50+00:00
28 - t + 35 = 53
-t = 53 - 35 - 28
-t = -10
t = 10

z - 35 - 64 = 16
z = 16 + 35 + 64
z = 115

x-10+14=85
x = 85 + 10 - 14
x = 81