himpunan penyelesaian dari persamaan 3x + 2y = 4 dan 2x + 3y = 1 ??

3x +2y=4
2x +3y =1

6x +4y = 8
6x +9y =3
....................-
-5y = 5
y=-1

2x +3y =1
2.x+3. - 1 = 1
2x =1 + 3
x =4/2
x =2

HP ={x, y} = {2,-1}