2(3.14)r=40

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Solution for 2(3.14)r=40 equation: 


Simplifying
2(3.14) * r = 40

Multiply 2 * 3.14
6.28r = 40

Solving
6.28r = 40

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 = 6.369426752

Simplifying
r = 6.369426752

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