B+7=a/3

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Solution for B+7=a/3 equation: 



+7=B/3

We move all terms to the left:

+7-(B/3)=0

We add all the numbers together, and all the variables

-(+B/3)+7=0

We get rid of parentheses

-B/3+7=0

We multiply all the terms by the denominator


-B+7*3=0

We add all the numbers together, and all the variables

-1B+21=0

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

-B=-21

B=-21/-1

B=+21

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