18=30/r

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Solution for 18=30/r equation: 



18=30/r

We move all terms to the left:

18-(30/r)=0



Domain of the equation: r)!=0

r!=0/1

r!=0

r∈R



We add all the numbers together, and all the variables

-(+30/r)+18=0

We get rid of parentheses

-30/r+18=0

We multiply all the terms by the denominator


18*r-30=0

We add all the numbers together, and all the variables

18r-30=0

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

18r=30

r=30/18

r=1+2/3

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