-(1-7b)=-5(-4b-5)

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Solution for -(1-7b)=-5(-4b-5) equation: 



-(1-7b)=-5(-4b-5)

We move all terms to the left:

-(1-7b)-(-5(-4b-5))=0

We add all the numbers together, and all the variables

-(-7b+1)-(-5(-4b-5))=0

We get rid of parentheses

7b-(-5(-4b-5))-1=0



We calculate terms in parentheses: -(-5(-4b-5)), so:

-5(-4b-5)

We multiply parentheses

20b+25

Back to the equation:

-(20b+25)



We get rid of parentheses

7b-20b-25-1=0

We add all the numbers together, and all the variables

-13b-26=0

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

-13b=26

b=26/-13

b=-2

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