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y+4 = (-3/4)*(x-5) // - (-3/4)*(x-5)
y-((-3/4)*(x-5))+4 = 0
(3/4)*(x-5)+y+4 = 0
3/4*(x-5)+y+4 = 0
3/4*(x-5)+y+4 = 0
3/4*x+y-15/4+4 = 0
3/4*x+y+1/4 = 0
3/4*x+y+1/4 = 0
3/4*x+y+1/4 = 0 // - y+1/4
3/4*x = -(y+1/4) // : 3/4
x = (-(y+1/4))/3/4
x = -4/3*(y+1/4)
x = -4/3*(y+1/4)
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