Răspuns :
a + b = 64
a = b + 14
b + 14 + b = 64
2b = 64 - 14
2b = 50
b = 50 : 2
b = 25
a = 25 + 14
a = 39
a = b + 14
b + 14 + b = 64
2b = 64 - 14
2b = 50
b = 50 : 2
b = 25
a = 25 + 14
a = 39