Ответ:
x=40+y
3*(40+y)=5y
120+3y=5y
5y=120+3y
2y=120
y=60.
x=40+60=100
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Ответ:
x=40+y
3*(40+y)=5y
120+3y=5y
5y=120+3y
2y=120
y=60.
x=40+60=100