63/r=7

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Solution for 63/r=7 equation: 



63/r=7

We move all terms to the left:

63/r-(7)=0



Domain of the equation: r!=0

r∈R



We multiply all the terms by the denominator


-7*r+63=0

We add all the numbers together, and all the variables

-7r+63=0

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

-7r=-63

r=-63/-7

r=+9

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