y=(2x-9)/(x-3)

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Solution for y=(2x-9)/(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 = (2*x-9)/(x-3) // - (2*x-9)/(x-3)

y-((2*x-9)/(x-3)) = 0

(-1*(2*x-9))/(x-3)+y = 0

(-1*(2*x-9))/(x-3)+(y*(x-3))/(x-3) = 0

y*(x-3)-1*(2*x-9) = 0

x*y-2*x-3*y+9 = 0

(x*y-2*x-3*y+9)/(x-3) = 0

(x*y-2*x-3*y+9)/(x-3) = 0 // * x-3

x*y-2*x-3*y+9 = 0

x*y-3*y+9 = 0 // - 9-3*y

x*y = -(9-3*y) // : y

x = (-(9-3*y))/y

x = -(y^-1*(9-3*y))

x = -(y^-1*(9-3*y))

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