7+3n=7n+7

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



7+3n=7n+7

We move all terms to the left:

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

We get rid of parentheses

3n-7n-7+7=0

We add all the numbers together, and all the variables

-4n=0

n=0/-4

n=0

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