57=(30)(r)

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Solution for 57=(30)(r) equation: 



57=(30)(r)

We move all terms to the left:

57-((30)(r))=0

determiningTheFunctionDomain
-30r+57=0

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

-30r=-57

r=-57/-30

r=1+9/10

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