a+b=717
b=a ori 2
a l--------l
b l----l----l total 717
717:3=239 a
239 ori 2=478 b
verificam: 239+478=717 total
2. a+b+c=366
a=b ori 2
c=b ori 3;
aflati nr?
b l--------l
a l----------l
c l----------l total 366
366:3=122 b
122 +122+122=366 totalul
a b c
3. a+b=150
a-3 =b;a=b+3
a=b ori 2;
b l------l
a l------l------l+3 total 150
150-3=147
147:3=49 b
49 ori 2 +3
98+3= 101 a
11+49= 150 totalul sper ca am ajutat .....