4=28/b

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Solution for 4=28/b equation: 



4=28/b

We move all terms to the left:

4-(28/b)=0



Domain of the equation: b)!=0

b!=0/1

b!=0

b∈R



We add all the numbers together, and all the variables

-(+28/b)+4=0

We get rid of parentheses

-28/b+4=0

We multiply all the terms by the denominator


4*b-28=0

We add all the numbers together, and all the variables

4b-28=0

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

4b=28

b=28/4

b=7

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