Question

уравнение  115-(35+y)=39
z-35-64=16
28-t+35=53

Answer 1

115-(35+y)=39
115-35-y=39
-y=39-115+35
-y=-41
y=41
==================
z-35-64=16
z=16+35+64
z=115
=============
28-t+35=53
-t=53-28-35
-t=-10
t=10