12/r=27

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Solution for 12/r=27 equation: 



12/r=27

We move all terms to the left:

12/r-(27)=0



Domain of the equation: r!=0

r∈R



We multiply all the terms by the denominator


-27*r+12=0

We add all the numbers together, and all the variables

-27r+12=0

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

-27r=-12

r=-12/-27

r=4/9

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