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y-((2/5)*(x-1))+1 = 0
(-2/5)*(x-1)+y+1 = 0
y-2/5*(x-1)+1 = 0
y-2/5*(x-1)+1 = 0
y-2/5*x+2/5+1 = 0
y-2/5*x+7/5 = 0
y-2/5*x+7/5 = 0
y-2/5*x+7/5 = 0 // - y+7/5
-2/5*x = -(y+7/5) // : -2/5
x = (-(y+7/5))/(-2/5)
x = 5/2*(y+7/5)
x = 5/2*(y+7/5)
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