65.9=2*3.14r

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Solution for 65.9=2*3.14r equation: 



65.9=2*3.14r

We move all terms to the left:

65.9-(2*3.14r)=0

We add all the numbers together, and all the variables

-(+2*3.14r)+65.9=0

We get rid of parentheses

-2*3.14r+65.9=0

Wy multiply elements

-6r+65.9=0

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

-6r=-65.9

r=-65.9/-6

r=10+3.1052631578947/3.1578947368421

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