9=4/9r

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Solution for 9=4/9r equation: 



9=4/9r

We move all terms to the left:

9-(4/9r)=0



Domain of the equation: 9r)!=0

r!=0/1

r!=0

r∈R



We add all the numbers together, and all the variables

-(+4/9r)+9=0

We get rid of parentheses

-4/9r+9=0

We multiply all the terms by the denominator


9*9r-4=0

Wy multiply elements

81r-4=0

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

81r=4

r=4/81

r=4/81

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