-9b+8(b+7)=-9b-4(b+4)

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Solution for -9b+8(b+7)=-9b-4(b+4) equation: 



-9b+8(b+7)=-9b-4(b+4)

We move all terms to the left:

-9b+8(b+7)-(-9b-4(b+4))=0

We multiply parentheses

-9b+8b-(-9b-4(b+4))+56=0



We calculate terms in parentheses: -(-9b-4(b+4)), so:

-9b-4(b+4)

We multiply parentheses

-9b-4b-16

We add all the numbers together, and all the variables

-13b-16

Back to the equation:

-(-13b-16)



We add all the numbers together, and all the variables

-1b-(-13b-16)+56=0

We get rid of parentheses

-1b+13b+16+56=0

We add all the numbers together, and all the variables

12b+72=0

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

12b=-72

b=-72/12

b=-6

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