(4.7*b)/(4.7+b)=3.9

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Solution for (4.7*b)/(4.7+b)=3.9 equation: 



(4.7b)/(4.7+b)=3.9

We move all terms to the left:

(4.7b)/(4.7+b)-(3.9)=0



Domain of the equation: (4.7+b)!=0

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

b!=-4.7

b∈R



We add all the numbers together, and all the variables

(+4.7b)/(b+4.7)-(3.9)=0

We add all the numbers together, and all the variables

(+4.7b)/(b+4.7)-3.9=0

We multiply all the terms by the denominator


(+4.7b)-(3.9)*(b+4.7)=0

We get rid of parentheses

4.7b-(3.9)*(b+4.7)=0

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