n/7=3,n=21

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Solution for n/7=3,n=21 equation: 



n/7=3.n=21

We move all terms to the left:

n/7-(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 multiply all the terms by the denominator


n-(3.n)*7=0

We add all the numbers together, and all the variables

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

We multiply parentheses

n-21n=0

We add all the numbers together, and all the variables

-20n=0

n=0/-20

n=0

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