9n+(7n+21)=39

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Solution for 9n+(7n+21)=39 equation: 



9n+(7n+21)=39

We move all terms to the left:

9n+(7n+21)-(39)=0

We get rid of parentheses

9n+7n+21-39=0

We add all the numbers together, and all the variables

16n-18=0

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

16n=18

n=18/16

n=1+1/8

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