n7=3,n=21

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Solution for n7=3,n=21 equation: 



n7=3.n=21

We move all terms to the left:

n7-(3.n)=0

We add all the numbers together, and all the variables

n7-(+3.n)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

n^7-3.n=0

We do not support enpression: n^7

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