C=2(3.14)*r

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Solution for C=2(3.14)*r equation: 



=2(3.14)*C

We move all terms to the left:

-(2(3.14)*C)=0



We calculate terms in parentheses: -(2(3.14)*C), so:

2(3.14)*C

We multiply parentheses

6.28C

Back to the equation:

-(6.28C)



We add all the numbers together, and all the variables

-(+6.28C)=0

We get rid of parentheses

-6.28C=0

C=0/-6.28

C=0

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