-99=x-(-1)

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Solution for -99=x-(-1) equation: 



-99=x-(-1)

We move all terms to the left:

-99-(x-(-1))=0



We calculate terms in parentheses: -(x-(-1)), so:

x-(-1)

We add all the numbers together, and all the variables

x+1

Back to the equation:

-(x+1)



We get rid of parentheses

-x-1-99=0

We add all the numbers together, and all the variables

-1x-100=0

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

-x=100

x=100/-1

x=-100

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