-7(b+7)=-9+3b

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Solution for -7(b+7)=-9+3b equation: 



-7(b+7)=-9+3b

We move all terms to the left:

-7(b+7)-(-9+3b)=0

We add all the numbers together, and all the variables

-7(b+7)-(3b-9)=0

We multiply parentheses

-7b-(3b-9)-49=0

We get rid of parentheses

-7b-3b+9-49=0

We add all the numbers together, and all the variables

-10b-40=0

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

-10b=40

b=40/-10

b=-4

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