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n+(n+1)=-115
We move all terms to the left:
n+(n+1)-(-115)=0
We add all the numbers together, and all the variables
n+(n+1)+115=0
We get rid of parentheses
n+n+1+115=0
We add all the numbers together, and all the variables
2n+116=0
We move all terms containing n to the left, all other terms to the right
2n=-116
n=-116/2
n=-58
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