3x+2y=5
x+5y=7
y=-1.5x+2.5
x+5*(-1.5x+2.5)=7
x-7.5x+12.5-7=0
-6.5x+5.5=0
x=5.5/6.5
x=11/13
3*(11/13)+2y=5
-32/13+2y=0
y=16/13
3x+2y=5
x+5y=7
3x+2y=5
y=-1.5x+2.5
x+5y=7
x+5*(-1.5x+2.5)=7
x-7.5x+12.5-7=0
-6.5x+5.5=0
x=5.5/6.5
x=11/13
3x+2y=5
3*(11/13)+2y=5
-32/13+2y=0
y=16/13