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Answer:
x=-4+2y
x= 2y-4
y=-2+2x
y=2x+2
Step-by-step explanation:
lets start with x
x-2y=-4
x=-4+2y
x=2y-4
now y
x-2y=-4
2y=-4+x
y=-2+2x
x=2y-4
2y=x+4
y=2x+2