Răspunsuri

2014-06-04T14:25:00+03:00
A+b=95
a+75=b+40
a+75-40=b
b=a+35
a+b=a+a+35=95
2a=95-35
2a=60
a=30
b=a+35=30+35
b=65
Verificare: a+b=30+65=95 corect