6n-21=6n+7

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Solution for 6n-21=6n+7 equation: 



6n-21=6n+7

We move all terms to the left:

6n-21-(6n+7)=0

We get rid of parentheses

6n-6n-7-21=0

We add all the numbers together, and all the variables

-28!=0

There is no solution for this equation

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