Question

решите уровнение (б) плиз

Answer 1

115-(35+y)=39
35+y=115-39
35+y=76
y=76-35
y=41

Answer 2

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

115-(35+у)=39
(35+у)=115-39
35+у=76
у=76-35
у=41