Question

решите уравнения---- 

(X+27)-12=42

115-(35+Y)=39
Z-35-64=16
28-t+35+53 

Answer 1

(X+27)-12=42
(X+27)=42+12
(X+27)=54
X=54-27
X=27


115-(35+Y)=39
(35+Y)=39+115
(35+Y)=154
Y=154-35
Y=119