-7=8-2n+1

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Solution for -7=8-2n+1 equation: 



-7=8-2n+1

We move all terms to the left:

-7-(8-2n+1)=0

We add all the numbers together, and all the variables

-(-2n+9)-7=0

We get rid of parentheses

2n-9-7=0

We add all the numbers together, and all the variables

2n-16=0

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

2n=16

n=16/2

n=8

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