-40-8b=4(-1-5b)

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Solution for -40-8b=4(-1-5b) equation: 



-40-8b=4(-1-5b)

We move all terms to the left:

-40-8b-(4(-1-5b))=0

We add all the numbers together, and all the variables

-8b-(4(-5b-1))-40=0



We calculate terms in parentheses: -(4(-5b-1)), so:

4(-5b-1)

We multiply parentheses

-20b-4

Back to the equation:

-(-20b-4)



We get rid of parentheses

-8b+20b+4-40=0

We add all the numbers together, and all the variables

12b-36=0

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

12b=36

b=36/12

b=3

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