Răspuns :
b-baieti
f-fete
-------
b+f=137
b=f-23
=>f-23+f=137
=>2f=137+23
=>2f=160
=>f=160/2
=>f=80
b+80=137
b=137-80
b=57
Proba:57+80=137
f-fete
-------
b+f=137
b=f-23
=>f-23+f=137
=>2f=137+23
=>2f=160
=>f=160/2
=>f=80
b+80=137
b=137-80
b=57
Proba:57+80=137
b-baieti
f-fete
______
b+f=137
b=f-23
-->f-23+f=137
-->2f=137+23
-->2f=160
-->f=160/2
-->f=80
b+80=137
b=137-80
b=57
f-fete
______
b+f=137
b=f-23
-->f-23+f=137
-->2f=137+23
-->2f=160
-->f=160/2
-->f=80
b+80=137
b=137-80
b=57