2*3.14r=7.85

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Solution for 2*3.14r=7.85 equation: 


Simplifying
2 * 3.14r = 7.85

Multiply 2 * 3.14
6.28r = 7.85

Solving
6.28r = 7.85

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 = 1.25

Simplifying
r = 1.25

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