82=2(3.14159265359)r

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Solution for 82=2(3.14159265359)r equation: 



82=2(3.14159265359)r

We move all terms to the left:

82-(2(3.14159265359)r)=0



We calculate terms in parentheses: -(2(3.14159265359)r), so:

2(3.14159265359)r

We multiply parentheses

6.28318530718r

Back to the equation:

-(6.28318530718r)



We add all the numbers together, and all the variables

-(+6.28318530718r)+82=0

We get rid of parentheses

-6.28318530718r+82=0

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

-6.28318530718r=-82

r=-82/-6.28318530718

r=13+0.31859100666/6.28318530718

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