21=n/4

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Solution for 21=n/4 equation: 



21=n/4

We move all terms to the left:

21-(n/4)=0

We add all the numbers together, and all the variables

-(+n/4)+21=0

We get rid of parentheses

-n/4+21=0

We multiply all the terms by the denominator


-n+21*4=0

We add all the numbers together, and all the variables

-1n+84=0

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

-n=-84

n=-84/-1

n=+84

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