Question 868926
4x + 2y = −4 [multiply by -2 & add.]

−2x = −4y + 12

-2x+4y=12
-8x-4y=8
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-10x=20
x=20/-10
x=-2 ans.
4*-2+2y=-4
-8+2y=-4
2y=-4+8
2y=4
y=4/2
y=2 ans.
Proof:
-2*-2=-4*2+12
4=-8+12
4=4