2*3.14*r=47.1

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Solution for 2*3.14*r=47.1 equation: 


Simplifying
2 * 3.14r = 47.1

Multiply 2 * 3.14
6.28r = 47.1

Solving
6.28r = 47.1

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Divide each side by '6.28'.
r = 7.5

Simplifying
r = 7.5

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