21=3/4n

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Solution for 21=3/4n equation: 



21=3/4n

We move all terms to the left:

21-(3/4n)=0



Domain of the equation: 4n)!=0

n!=0/1

n!=0

n∈R



We add all the numbers together, and all the variables

-(+3/4n)+21=0

We get rid of parentheses

-3/4n+21=0

We multiply all the terms by the denominator


21*4n-3=0

Wy multiply elements

84n-3=0

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

84n=3

n=3/84

n=1/28

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