3n+7=4n+7

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Solution for 3n+7=4n+7 equation: 



3n+7=4n+7

We move all terms to the left:

3n+7-(4n+7)=0

We get rid of parentheses

3n-4n-7+7=0

We add all the numbers together, and all the variables

-n=0

n=0/-1

n=0

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