n(n+5)=n2-15

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Solution for n(n+5)=n2-15 equation: 



n(n+5)=n2-15

We move all terms to the left:

n(n+5)-(n2-15)=0

We add all the numbers together, and all the variables

-(+n^2-15)+n(n+5)=0

We multiply parentheses

-(+n^2-15)+n^2+5n=0

We get rid of parentheses

-n^2+n^2+5n+15=0

We add all the numbers together, and all the variables

5n+15=0

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

5n=-15

n=-15/5

n=-3

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