9/x=15/(x-4)

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Solution for 9/x=15/(x-4) equation: 



9/x=15/(x-4)

We move all terms to the left:

9/x-(15/(x-4))=0



Domain of the equation: x!=0

x∈R





Domain of the equation: (x-4))!=0

x∈R



We calculate fractions


9x/(-3x^2)+(-(15*x)/(-3x^2)=0



We calculate terms in parentheses: +(-(15*x)/(-3x^2), so:

-(15*x)/(-3x^2

We add all the numbers together, and all the variables

-(+15x)/(-3x^2

We multiply all the terms by the denominator


-(+15x)

We get rid of parentheses

-15x

Back to the equation:

+(-15x)



We get rid of parentheses

9x/(-3x^2)-15x=0

We multiply all the terms by the denominator


-15x*(-3x^2)+9x=0

We multiply parentheses

45x^3+9x=0

We do not support expression: x^3

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