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y+7 = (-1/4)*x+5*(-1/4) // - (-1/4)*x+5*(-1/4)
y-((-1/4)*x)-(5*(-1/4))+7 = 0
(1/4)*x+y+5/4+7 = 0
1/4*x+y+33/4 = 0 // - y+33/4
1/4*x = -(y+33/4) // : 1/4
x = (-(y+33/4))/1/4
x = -4*(y+33/4)
x = -4*(y+33/4)
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