Question

2x-4y=2 -2x+3y=0 elimination

Answer 1

2x-4y=2

-2x+3y=0

-------------------- (+)

3y-4y=2

-y=2 /*(-1)

y=-2

2x-4y=2

2x-4*(-2)=2

2x+8=2 /-8

2x=-6

x=-3

Answer 2

`2x-4y=2 \\ \underline{-2x+3y=0} \\ -4y+3y=2+0 \\ -y=2 \\ y=-2 \\ \\ 2x-4y=2 \\ 2x-4 * (-2)=2 \\ 2x+8=2 \\ 2x=2-8 \\ 2x=-6 \\ x=(-6)/(2) \\ x=-3 \\ \\ (x,y)=(-3,-2)`