3000-(2300-18:y:3)=702
2300-18:y:3=3000-702
2300-18:y:3=2298
18:y:3=2300-2298
18:y:3=2
18:y=2×3
18:y=6
y=18:3
y=6
Sper ca ti-am fost de ajutor <3
