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

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



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

We move all terms to the left:

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



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

x∈R



We multiply all the terms by the denominator


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



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

(x+4)+9*(x+12)

We multiply parentheses

(x+4)+9x+108

We get rid of parentheses

x+9x+4+108

We add all the numbers together, and all the variables

10x+112

Back to the equation:

-(10x+112)



We get rid of parentheses

-10x-112=0

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

-10x=112

x=112/-10

x=-11+1/5

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