140=-5(4b-8)

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Solution for 140=-5(4b-8) equation: 



140=-5(4b-8)

We move all terms to the left:

140-(-5(4b-8))=0



We calculate terms in parentheses: -(-5(4b-8)), so:

-5(4b-8)

We multiply parentheses

-20b+40

Back to the equation:

-(-20b+40)



We get rid of parentheses

20b-40+140=0

We add all the numbers together, and all the variables

20b+100=0

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

20b=-100

b=-100/20

b=-5

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