-1-b=-2(b-1)

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Solution for -1-b=-2(b-1) equation: 



-1-b=-2(b-1)

We move all terms to the left:

-1-b-(-2(b-1))=0

We add all the numbers together, and all the variables

-1b-(-2(b-1))-1=0



We calculate terms in parentheses: -(-2(b-1)), so:

-2(b-1)

We multiply parentheses

-2b+2

Back to the equation:

-(-2b+2)



We get rid of parentheses

-1b+2b-2-1=0

We add all the numbers together, and all the variables

b-3=0

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

b=3

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