Răspuns :
X= Fratele mare
Y=fratele mic
x=y+12
y+y+12=38
2y+12=38
2y=38-12=26
y=26:2
y=13
x=13+12
x=25
Spor la treaba
Y=fratele mic
x=y+12
y+y+12=38
2y+12=38
2y=38-12=26
y=26:2
y=13
x=13+12
x=25
Spor la treaba