31=-1-2n

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Solution for 31=-1-2n equation: 



31=-1-2n

We move all terms to the left:

31-(-1-2n)=0

We add all the numbers together, and all the variables

-(-2n-1)+31=0

We get rid of parentheses

2n+1+31=0

We add all the numbers together, and all the variables

2n+32=0

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

2n=-32

n=-32/2

n=-16

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