36/r=9

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Solution for 36/r=9 equation: 



36/r=9

We move all terms to the left:

36/r-(9)=0



Domain of the equation: r!=0

r∈R



We multiply all the terms by the denominator


-9*r+36=0

We add all the numbers together, and all the variables

-9r+36=0

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

-9r=-36

r=-36/-9

r=+4

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