37.7=2*3.14*r

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Solution for 37.7=2*3.14*r equation: 


Simplifying
37.7 = 2 * 3.14r

Multiply 2 * 3.14
37.7 = 6.28r

Solving
37.7 = 6.28r

Solving for variable 'r'.

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

Add '-6.28r' to each side of the equation.
37.7 + -6.28r = 6.28r + -6.28r

Combine like terms: 6.28r + -6.28r = 0.00
37.7 + -6.28r = 0.00

Add '-37.7' to each side of the equation.
37.7 + -37.7 + -6.28r = 0.00 + -37.7

Combine like terms: 37.7 + -37.7 = 0.0
0.0 + -6.28r = 0.00 + -37.7
-6.28r = 0.00 + -37.7

Combine like terms: 0.00 + -37.7 = -37.7
-6.28r = -37.7

Divide each side by '-6.28'.
r = 6.003184713

Simplifying
r = 6.003184713

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