Tolong jawab yah yang baek dikumpul bsk.

2x + y = 9 | kalikan 3
3x + 2y = 13 | kalikan 2
__________________ (eliminasi)
6x + 3y = 27
6x + 4y = 26 ( - )
`````````````````````````````` dikurangi
-y = 1
y = -1

2x + y = 9
2x + (-1) = 9
2x = 9 + 1
x = 10/2 = 5

(x,y) =
(5,-1) {c}

Kalau boleh jadikan jawaban terbaik yah.