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Simplifying 27 = 2 * 3.14r Multiply 2 * 3.14 27 = 6.28r Solving 27 = 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. 27 + -6.28r = 6.28r + -6.28r Combine like terms: 6.28r + -6.28r = 0.00 27 + -6.28r = 0.00 Add '-27' to each side of the equation. 27 + -27 + -6.28r = 0.00 + -27 Combine like terms: 27 + -27 = 0 0 + -6.28r = 0.00 + -27 -6.28r = 0.00 + -27 Combine like terms: 0.00 + -27 = -27 -6.28r = -27 Divide each side by '-6.28'. r = 4.299363057 Simplifying r = 4.299363057
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