-136=-4(8+5b)+7b

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Solution for -136=-4(8+5b)+7b equation: 



-136=-4(8+5b)+7b

We move all terms to the left:

-136-(-4(8+5b)+7b)=0

We add all the numbers together, and all the variables

-(-4(5b+8)+7b)-136=0



We calculate terms in parentheses: -(-4(5b+8)+7b), so:

-4(5b+8)+7b

We add all the numbers together, and all the variables

7b-4(5b+8)

We multiply parentheses

7b-20b-32

We add all the numbers together, and all the variables

-13b-32

Back to the equation:

-(-13b-32)



We get rid of parentheses

13b+32-136=0

We add all the numbers together, and all the variables

13b-104=0

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

13b=104

b=104/13

b=8

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