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Simplifying 39.25 = 3.14r Solving 39.25 = 3.14r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3.14r' to each side of the equation. 39.25 + -3.14r = 3.14r + -3.14r Combine like terms: 3.14r + -3.14r = 0.00 39.25 + -3.14r = 0.00 Add '-39.25' to each side of the equation. 39.25 + -39.25 + -3.14r = 0.00 + -39.25 Combine like terms: 39.25 + -39.25 = 0.00 0.00 + -3.14r = 0.00 + -39.25 -3.14r = 0.00 + -39.25 Combine like terms: 0.00 + -39.25 = -39.25 -3.14r = -39.25 Divide each side by '-3.14'. r = 12.5 Simplifying r = 12.5
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