B=5+7x^-1

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Solution for B=5+7x^-1 equation: 



=5+7B^-1

We move all terms to the left:

-(5+7B^-1)=0

We get rid of parentheses

-7B^-5+1=0

We add all the numbers together, and all the variables

-7B-4=0

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

-7B=4

B=4/-7

B=-4/7

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