15=13(x+9)

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Solution for 15=13(x+9) equation: 



15=13(x+9)

We move all terms to the left:

15-(13(x+9))=0



We calculate terms in parentheses: -(13(x+9)), so:

13(x+9)

We multiply parentheses

13x+117

Back to the equation:

-(13x+117)



We get rid of parentheses

-13x-117+15=0

We add all the numbers together, and all the variables

-13x-102=0

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

-13x=102

x=102/-13

x=-7+11/13

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