125.6=3.14*2r

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Solution for 125.6=3.14*2r equation:


Simplifying
125.6 = 3.14 * 2r

Multiply 3.14 * 2
125.6 = 6.28r

Solving
125.6 = 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.
125.6 + -6.28r = 6.28r + -6.28r

Combine like terms: 6.28r + -6.28r = 0.00
125.6 + -6.28r = 0.00

Add '-125.6' to each side of the equation.
125.6 + -125.6 + -6.28r = 0.00 + -125.6

Combine like terms: 125.6 + -125.6 = 0.0
0.0 + -6.28r = 0.00 + -125.6
-6.28r = 0.00 + -125.6

Combine like terms: 0.00 + -125.6 = -125.6
-6.28r = -125.6

Divide each side by '-6.28'.
r = 20

Simplifying
r = 20

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