x=9-y
3y-2(9-y)=8
3y-18+2y=8
y=26
x=9-26=-17
y=12-2x
2x-(12-2x)=23
2x-12+2x=23
4x=11
x=11/4
y=12-11/2
x=9-y
3y-2(9-y)=8
3y-18+2y=8
y=26
x=9-26=-17
y=12-2x
2x-(12-2x)=23
2x-12+2x=23
4x=11
x=11/4
y=12-11/2