8=(x-15)/(x+12)

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Solution for 8=(x-15)/(x+12) equation: 



8=(x-15)/(x+12)

We move all terms to the left:

8-((x-15)/(x+12))=0



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

x∈R



We multiply all the terms by the denominator


-((x-15)+8*(x+12))=0



We calculate terms in parentheses: -((x-15)+8*(x+12)), so:

(x-15)+8*(x+12)

We multiply parentheses

(x-15)+8x+96

We get rid of parentheses

x+8x-15+96

We add all the numbers together, and all the variables

9x+81

Back to the equation:

-(9x+81)



We get rid of parentheses

-9x-81=0

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

-9x=81

x=81/-9

x=-9

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