решите уровнение (x+27) - 12=42,115 - (35+y) = 39, z-35-64=16,28-t+35=53.

Вычислим корни.

1) (x + 27) - 12 = 42;

x + 27 - 12 = 42;

x + 15 = 42;

x = 42 - 15;

x = 30 - 3;

x = 27.

2) 115 - (35 + y) = 39;

115 - 35 - y = 39;

80 - y = 39;

y = 80 - 39;

y = 41.

3) z - 35 - 64 = 16;

z - 99 = 16;

z = 16 + 99;

z = 115.

4) 28 - t + 35 = 53;

t = 28 + 35 - 53;

t = 63 - 53;

t = 10.