-7=x+8+1

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Solution for -7=x+8+1 equation: 



-7=x+8+1

We move all terms to the left:

-7-(x+8+1)=0

We add all the numbers together, and all the variables

-(x+9)-7=0

We get rid of parentheses

-x-9-7=0

We add all the numbers together, and all the variables

-1x-16=0

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

-x=16

x=16/-1

x=-16

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