3/(4m+9)=21

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Solution for 3/(4m+9)=21 equation: 



3/(4m+9)=21

We move all terms to the left:

3/(4m+9)-(21)=0



Domain of the equation: (4m+9)!=0

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

4m!=-9

m!=-9/4

m!=-2+1/4

m∈R



We multiply all the terms by the denominator


-21*(4m+9)+3=0

We multiply parentheses

-84m-189+3=0

We add all the numbers together, and all the variables

-84m-186=0

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

-84m=186

m=186/-84

m=-2+3/14

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