y=(4x-12)/(x-3)

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Solution for y=(4x-12)/(x-3) equation: 


D( x )

x-3 = 0

x-3 = 0

x-3 = 0

x-3 = 0 // + 3

x = 3

x in (-oo:3) U (3:+oo)

y = (4*x-12)/(x-3) // - (4*x-12)/(x-3)

y-((4*x-12)/(x-3)) = 0

(-1*(4*x-12))/(x-3)+y = 0

(-1*(4*x-12))/(x-3)+(y*(x-3))/(x-3) = 0

y*(x-3)-1*(4*x-12) = 0

x*y-4*x-3*y+12 = 0

(x*y-4*x-3*y+12)/(x-3) = 0

(x*y-4*x-3*y+12)/(x-3) = 0 // * x-3

x*y-4*x-3*y+12 = 0

x*y-3*y+12 = 0 // - 12-3*y

x*y = -(12-3*y) // : y

x = (-(12-3*y))/y

x = -(y^-1*(12-3*y))

x = -(y^-1*(12-3*y))

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