9=(v+4)/(v+12)

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Solution for 9=(v+4)/(v+12) equation: 



9=(v+4)/(v+12)

We move all terms to the left:

9-((v+4)/(v+12))=0



Domain of the equation: (v+12))!=0

v∈R



We multiply all the terms by the denominator


-((v+4)+9*(v+12))=0



We calculate terms in parentheses: -((v+4)+9*(v+12)), so:

(v+4)+9*(v+12)

We multiply parentheses

(v+4)+9v+108

We get rid of parentheses

v+9v+4+108

We add all the numbers together, and all the variables

10v+112

Back to the equation:

-(10v+112)



We get rid of parentheses

-10v-112=0

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

-10v=112

v=112/-10

v=-11+1/5

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