Răspunsuri

2014-10-30T09:01:00+02:00
Axb=80
(a+5)xb=160
axb+5xb=160
80+5xb=160
5xb=80
b=80:5
b=16......a=5
2014-10-30T09:02:14+02:00
A+b=80 B+5=160 a -----5 {in preuna 160 B____ {in preuna 160 160-5=155 B=