n+7=3n+7

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



n+7=3n+7

We move all terms to the left:

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

We get rid of parentheses

n-3n-7+7=0

We add all the numbers together, and all the variables

-2n=0

n=0/-2

n=0

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