-3n+7n=39

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Solution for -3n+7n=39 equation: 



-3n+7n=39

We move all terms to the left:

-3n+7n-(39)=0

We add all the numbers together, and all the variables

4n-39=0

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

4n=39

n=39/4

n=9+3/4

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