Răspuns :
a + b = 3 x8
a : b = 2 , a = 2b
2b + b = 24
3b = 24
b = 24 : 3
b = 8
a = 2 x 8
a = 16
a : b = 2 , a = 2b
2b + b = 24
3b = 24
b = 24 : 3
b = 8
a = 2 x 8
a = 16