4=b/20

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Solution for 4=b/20 equation: 



4=b/20

We move all terms to the left:

4-(b/20)=0

We add all the numbers together, and all the variables

-(+b/20)+4=0

We get rid of parentheses

-b/20+4=0

We multiply all the terms by the denominator


-b+4*20=0

We add all the numbers together, and all the variables

-1b+80=0

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

-b=-80

b=-80/-1

b=+80

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