15+4n=8-(13-9n)

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Solution for 15+4n=8-(13-9n) equation: 



15+4n=8-(13-9n)

We move all terms to the left:

15+4n-(8-(13-9n))=0

We add all the numbers together, and all the variables

4n-(8-(-9n+13))+15=0



We calculate terms in parentheses: -(8-(-9n+13)), so:

8-(-9n+13)

determiningTheFunctionDomain
-(-9n+13)+8

We get rid of parentheses

9n-13+8

We add all the numbers together, and all the variables

9n-5

Back to the equation:

-(9n-5)



We get rid of parentheses

4n-9n+5+15=0

We add all the numbers together, and all the variables

-5n+20=0

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

-5n=-20

n=-20/-5

n=+4

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