a+b+c=72
a:c=3 r 2
b:c=2 r 4
a,b,c=?
a:c=3 r 2
a=3×c+2
a=3c+2
b:c=2 r 4
b=2×c+4
b=2c+4
a+b+c=72
3c+2+2c+4+c=72
6c+6=72
6c=72-6
6c=66 =>c=66:6 =>c=11
a=3c+2
a=3×11+2
a=33+2 =>a=35
b=2c+4
b=2×11+4
b=22+4 =>b=26
a+b+c=72
35+26+11=72
61+11=72
72=72
Sper sa-ti fie de folos! Succes!