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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

7b-(-4b-4(-1b+7))-49=0



We calculate terms in parentheses: -(-4b-4(-1b+7)), so:

-4b-4(-1b+7)

We multiply parentheses

-4b+4b-28

We add all the numbers together, and all the variables

-28

Back to the equation:

-(-28)



We add all the numbers together, and all the variables

7b-21=0

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

7b=21

b=21/7

b=3

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