7/n=21/n

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Solution for 7/n=21/n equation: 



7/n=21/n

We move all terms to the left:

7/n-(21/n)=0



Domain of the equation: n!=0

n∈R





Domain of the equation: n)!=0

n!=0/1

n!=0

n∈R



We add all the numbers together, and all the variables

7/n-(+21/n)=0

We get rid of parentheses

7/n-21/n=0

We multiply all the terms by the denominator


7-21=0

We add all the numbers together, and all the variables

-14!=0

There is no solution for this equation

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