-3=b/7

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Solution for -3=b/7 equation: 



-3=b/7

We move all terms to the left:

-3-(b/7)=0

We add all the numbers together, and all the variables

-(+b/7)-3=0

We get rid of parentheses

-b/7-3=0

We multiply all the terms by the denominator


-b-3*7=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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