x-2y=-3,5-4y+2x=?
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x-2y=-3,5-4y+2x=?
![x-2y=-3,5-4y+2x=?](/uploads/image/z/8465345-17-5.jpg?t=x-2y%3D-3%2C5-4y%2B2x%3D%3F)
x-2y=-3
5-4y+2x
=5+2(x-2y)
=5-6
=-1
5-4y+2x
=5+2(x-2y)
=5-6
=-1
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