-21=3/n+2

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Solution for -21=3/n+2 equation: 



-21=3/n+2

We move all terms to the left:

-21-(3/n+2)=0



Domain of the equation: n+2)!=0

n∈R



We get rid of parentheses

-3/n-2-21=0

We multiply all the terms by the denominator


-2*n-21*n-3=0

We add all the numbers together, and all the variables

-23n-3=0

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

-23n=3

n=3/-23

n=-3/23

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