2x - 3y = 7 4x + 2y = 22

2x - 3y = 7|× 2
4x + 2y = 22|× 3

4x - 6y = 14
12x + 6y = 66
__________+
16x = 80
x = 5

2x - 3y = 7
10 - 3y = 7
- 3y = 7 - 10
- 3y = - 3
y = 1

Maaf Kalau Salah

2x - 3 y = 7 ---(dikali 4)
4x + 2y = 22 --(dikali 2)
menjadi
8x - 12y = 28
8x + 4y = 44
--------------------- dikurangi
-16y = -16
y = 1

subtitusi pada persamaan 1
2x - 3y =7
2x - 3.1 = 7
2x-3 =7
2x = 7 + 3
2x = 10
x = 10/2
x = 5