Răspuns :
a + b = 66
a = 5b
5b + b = 66
6b = 66
b = 66:6
b = 11
a+11=66
a = 66 - 11
a = 55
verificare: a = 5 b
55 = 5 * 11
55 = 55 ( a )
55 + 11 = 66
66=66 (a)
a = 5b
5b + b = 66
6b = 66
b = 66:6
b = 11
a+11=66
a = 66 - 11
a = 55
verificare: a = 5 b
55 = 5 * 11
55 = 55 ( a )
55 + 11 = 66
66=66 (a)