-1=-(w-7)

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Solution for -1=-(w-7) equation: 



-1=-(w-7)

We move all terms to the left:

-1-(-(w-7))=0



We calculate terms in parentheses: -(-(w-7)), so:

-(w-7)

We get rid of parentheses

-w+7

We add all the numbers together, and all the variables

-1w+7

Back to the equation:

-(-1w+7)



We get rid of parentheses

1w-7-1=0

We add all the numbers together, and all the variables

w-8=0

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

w=8

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