Răspunsuri

2014-04-17T17:00:42+03:00
A+b+c=216
a=3(b+c)
c=b+20
3(b+b+20)=216⇒6b+60=216⇒6b=156⇒b=26
c=26+20⇒c=46
a=216-46-26⇒a=144
mersi :D
frate am facut proba si nu ti-a dat bine :(
gata am corectat