18n=7n-21

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Solution for 18n=7n-21 equation: 



18n=7n-21

We move all terms to the left:

18n-(7n-21)=0

We get rid of parentheses

18n-7n+21=0

We add all the numbers together, and all the variables

11n+21=0

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

11n=-21

n=-21/11

n=-1+10/11

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