F(x)=x/(x-9)

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Solution for F(x)=x/(x-9) equation: 



(F)=F/(F-9)

We move all terms to the left:

(F)-(F/(F-9))=0



Domain of the equation: (F-9))!=0

F∈R



We multiply all the terms by the denominator


F*(F-9))-(F=0

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