eliminasi dari 7X+2Y=14 2X-5Y=0 adalahh???

7x + 2y = 14 |×5
2x - 5y = 0 |×2
35x + 10y = 70
4x - 10y = 0
----------------------(+)
39x = 70
x = 70/39

7x + 2y = 14 |×2
2x - 5y = 0 |×7
14x + 4y = 28
14x - 35y = 0
--------------------(-)
39y = 28
y = 28/39

hp = {70/39 , 28/39}