22=(3.14)2r

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Solution for 22=(3.14)2r equation: 



22=(3.14)2r

We move all terms to the left:

22-((3.14)2r)=0



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

(3.14)2r

We multiply parentheses

6.28r

Back to the equation:

-(6.28r)



We add all the numbers together, and all the variables

-(+6.28r)+22=0

We get rid of parentheses

-6.28r+22=0

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

-6.28r=-22

r=-22/-6.28

r=3+1/1.98734177215

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