y=(15-2x)/3
x=0,y=(15-0)/3=5
x=-3,y=(15+6)/3=7
x/4=y/5+2
x=4y/5+8
y=5,x=20/5+8=12
y=-5,x=-20/5+8=4
4x+5y=-32
x=-3,y=-4
2/3x+1/2y=11/2
4x+3y=33
x=6,y=3
x=3,y=7
y=(15-2x)/3
x=0,y=(15-0)/3=5
x=-3,y=(15+6)/3=7
x/4=y/5+2
x=4y/5+8
y=5,x=20/5+8=12
y=-5,x=-20/5+8=4
4x+5y=-32
x=-3,y=-4
2/3x+1/2y=11/2
4x+3y=33
x=6,y=3
x=3,y=7