(n)/(n-12)=(9)/(5)

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Solution for (n)/(n-12)=(9)/(5) equation: 



(n)/(n-12)=(9)/(5)

We move all terms to the left:

(n)/(n-12)-((9)/(5))=0



Domain of the equation: (n-12)!=0

We move all terms containing n to the left, all other terms to the right

n!=12

n∈R



We add all the numbers together, and all the variables

n/(n-12)-(+9/5)=0

We get rid of parentheses

n/(n-12)-9/5=0

We calculate fractions


5n/(5n-60)+(-9n+108)/(5n-60)=0

We multiply all the terms by the denominator


5n+(-9n+108)=0

We get rid of parentheses

5n-9n+108=0

We add all the numbers together, and all the variables

-4n+108=0

We move all terms containing n to the left, all other terms to the right

-4n=-108

n=-108/-4

n=+27

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