Răspuns:
a+b=170
a=2x2xb
a=4xb
4xb+b=170
5xb=170
b=170:5
b=34
a=4x34
a=136
Explicație pas cu pas:
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Răspuns:
a+b=170
a=2x2xb
a=4xb
4xb+b=170
5xb=170
b=170:5
b=34
a=4xb
a=4x34
a=136
Explicație pas cu pas: