Question

Решите: (x+27)-12=42 ; 115-(35+y)=39

Answer 1

(x+27)-12=42 ;
х=42+12-27
х=27
115-(35+y)=39
у=115-35-39
у=41

Answer 2

ой правильно простите

Answer 3

(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)=-76
-y=-76+35
-y=-41
y=41

Answer 4

чо???