Răspunsuri

2014-02-25T21:42:33+02:00
A+3a+a+85=785
5a+85=785
5a=785-5=700
a=700:5=140
b=140*3=420
c=140+85=225

P.S. * = INMULTIRE
2014-02-25T21:44:24+02:00
A=3b
c=a+85=3b+85
Calculam suma lor
3b+b+3b+85=785
7b=700
b=100
a=300
c=385