Explanation:
y + 4 = -2x + 2
2x + y = -2
2x = -2 - y
x = -2 -y/2
y+4= -2(x-1)
y+4= -2x+2
y-2x = 2-4
y-2x = -2
y-x= -2/2
y-x = -1
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