4x - y = 17 2x + 3y = 19 Selesaikan dengan cara substitusi, mohon bantuannya terima kasih :)

4x - y = 17 |×1|
2x + 3y = 19 |×2|
↓
4x - y = 17
4x + 6y = 38
__________+
5y = 55
y = 55/5
y = 11

substitusi :
4x + 6y = 38
4x + 66 = 38
4x = 38-66
4x = -28
x = -7

HP = { x = -7 dan y = 11}
Semoga membantu^^