-105/3=21/n

Solution for -105/3=21/n equation:

-105/3=21/n

We move all terms to the left:

-105/3-(21/n)=0


Domain of the equation: n)!=0

n!=0/1

n!=0

n∈R


We add all the numbers together, and all the variables

-(+21/n)-105/3=0

We add all the numbers together, and all the variables

-(+21/n)-35=0

We get rid of parentheses

-21/n-35=0

We multiply all the terms by the denominator


-35*n-21=0

We add all the numbers together, and all the variables

-35n-21=0

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

-35n=21

n=21/-35

n=-3/5