4/b-3.9=2/b=1

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Solution for 4/b-3.9=2/b=1 equation: 



4/b-3.9=2/b=1

We move all terms to the left:

4/b-3.9-(2/b)=0



Domain of the equation: b!=0

b∈R





Domain of the equation: b)!=0

b!=0/1

b!=0

b∈R



We add all the numbers together, and all the variables

4/b-(+2/b)-3.9=0

We get rid of parentheses

4/b-2/b-3.9=0

We multiply all the terms by the denominator


-(3.9)*b+4-2=0

We add all the numbers together, and all the variables

-(3.9)*b+2=0

We multiply parentheses

-3.9b+2=0

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

-3.9b=-2

b=-2/-3.9

b=2/3.9

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