21/(n+1)=-3

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Solution for 21/(n+1)=-3 equation: 



21/(n+1)=-3

We move all terms to the left:

21/(n+1)-(-3)=0



Domain of the equation: (n+1)!=0

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

n!=-1

n∈R



We add all the numbers together, and all the variables

21/(n+1)+3=0

We multiply all the terms by the denominator


3*(n+1)+21=0

We multiply parentheses

3n+3+21=0

We add all the numbers together, and all the variables

3n+24=0

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

3n=-24

n=-24/3

n=-8

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