-4(8+7b)=-5(1+5b)

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Solution for -4(8+7b)=-5(1+5b) equation: 



-4(8+7b)=-5(1+5b)

We move all terms to the left:

-4(8+7b)-(-5(1+5b))=0

We add all the numbers together, and all the variables

-4(7b+8)-(-5(5b+1))=0

We multiply parentheses

-28b-(-5(5b+1))-32=0



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

-5(5b+1)

We multiply parentheses

-25b-5

Back to the equation:

-(-25b-5)



We get rid of parentheses

-28b+25b+5-32=0

We add all the numbers together, and all the variables

-3b-27=0

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

-3b=27

b=27/-3

b=-9

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