-7b-1=-5(b-9)

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Solution for -7b-1=-5(b-9) equation: 



-7b-1=-5(b-9)

We move all terms to the left:

-7b-1-(-5(b-9))=0



We calculate terms in parentheses: -(-5(b-9)), so:

-5(b-9)

We multiply parentheses

-5b+45

Back to the equation:

-(-5b+45)



We get rid of parentheses

-7b+5b-45-1=0

We add all the numbers together, and all the variables

-2b-46=0

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

-2b=46

b=46/-2

b=-23

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