2115=7/r

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Solution for 2115=7/r equation: 



2115=7/r

We move all terms to the left:

2115-(7/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

-(+7/r)+2115=0

We get rid of parentheses

-7/r+2115=0

We multiply all the terms by the denominator


2115*r-7=0

We add all the numbers together, and all the variables

2115r-7=0

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

2115r=7

r=7/2115

r=7/2115

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