(3n-13)=(n+9)

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Solution for (3n-13)=(n+9) equation: 



(3n-13)=(n+9)

We move all terms to the left:

(3n-13)-((n+9))=0

We get rid of parentheses

3n-((n+9))-13=0



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

(n+9)

We get rid of parentheses

n+9

Back to the equation:

-(n+9)



We get rid of parentheses

3n-n-9-13=0

We add all the numbers together, and all the variables

2n-22=0

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

2n=22

n=22/2

n=11

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