-2=2(-1+b)

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



-2=2(-1+b)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

-2b+2-2=0

We add all the numbers together, and all the variables

-2b=0

b=0/-2

b=0

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