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y-1 = (-3/8)*(x-5) // - (-3/8)*(x-5)
y-((-3/8)*(x-5))-1 = 0
(3/8)*(x-5)+y-1 = 0
3/8*(x-5)+y-1 = 0
3/8*(x-5)+y-1 = 0
3/8*x+y-15/8-1 = 0
3/8*x+y-23/8 = 0
3/8*x+y-23/8 = 0
3/8*x+y-23/8 = 0 // - y-23/8
3/8*x = -(y-23/8) // : 3/8
x = (-(y-23/8))/3/8
x = 8/3*(23/8-y)
x = 8/3*(23/8-y)
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