B=-1-7a

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Solution for B=-1-7a equation: 



=-1-7B

We move all terms to the left:

-(-1-7B)=0

We add all the numbers together, and all the variables

-(-7B-1)=0

We get rid of parentheses

7B+1=0

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

7B=-1

B=-1/7

B=-1/7

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