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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