4n=3n-21

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Solution for 4n=3n-21 equation: 



4n=3n-21

We move all terms to the left:

4n-(3n-21)=0

We get rid of parentheses

4n-3n+21=0

We add all the numbers together, and all the variables

n+21=0

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

n=-21

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