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y-3 = (-4/5)*(x-2) // - (-4/5)*(x-2)
y-((-4/5)*(x-2))-3 = 0
(4/5)*(x-2)+y-3 = 0
4/5*(x-2)+y-3 = 0
4/5*(x-2)+y-3 = 0
4/5*x+y-3-8/5 = 0
4/5*x+y-23/5 = 0
4/5*x+y-23/5 = 0
4/5*x+y-23/5 = 0 // - y-23/5
4/5*x = -(y-23/5) // : 4/5
x = (-(y-23/5))/4/5
x = 5/4*(23/5-y)
x = 5/4*(23/5-y)
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