2x-y=3-2x-5y=32x-y+(-2x-5y)=3+3-6y=6y=-12x-(-1)=32x=2x=1x^2+y^2=(1)^2+(-1)^2=2
2x-y=3 -2x-5y=3 2x-y+(-2x-5y)=3+3 -6y=6 y=-1 2x-(-1)=3 2x=2 x=1 x^2+y^2 =(1)^2+(-1)^2 =2
2