Răspuns :
x - y = 47,18 si x=24,59 * y ⇒ 24,59y - y = 47,18
↓
23,59y = 47,18
y = 2
↓
x = 24,59 × 2 = 49,18
↓
23,59y = 47,18
y = 2
↓
x = 24,59 × 2 = 49,18