Răspuns :
a+b=34
a:b=5 rest4,a=bx5+4,a=5b+4+b=34
6b=34-4
6b=30,b=30:6,b=5
atunci a=5xb+4=5x5+4=29
a:b=5 rest4,a=bx5+4,a=5b+4+b=34
6b=34-4
6b=30,b=30:6,b=5
atunci a=5xb+4=5x5+4=29
a : b = 5 (rest 4) ↔ a = 5b+4 si a + b = 34
↓
5b+4+ b = 34 → 6b = 30 → b = 5
↓
a = 5×5 + 4 = 29
a = 29
↓
5b+4+ b = 34 → 6b = 30 → b = 5
↓
a = 5×5 + 4 = 29
a = 29