Răspuns:
a+b=135
a=b+35
b+35+b=135
2b+35=135/-35
2b=100/÷2
b=50
a=50+35
a=85
b=a+35
a+a+35+b+b=135
2a+2b+35=135
2a+2b=135-35
2a+2b=100
a=50
b=85
