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Simplifying 132 = 3.14(2r) Remove parenthesis around (2r) 132 = 3.14 * 2r Multiply 3.14 * 2 132 = 6.28r Solving 132 = 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. 132 + -6.28r = 6.28r + -6.28r Combine like terms: 6.28r + -6.28r = 0.00 132 + -6.28r = 0.00 Add '-132' to each side of the equation. 132 + -132 + -6.28r = 0.00 + -132 Combine like terms: 132 + -132 = 0 0 + -6.28r = 0.00 + -132 -6.28r = 0.00 + -132 Combine like terms: 0.00 + -132 = -132 -6.28r = -132 Divide each side by '-6.28'. r = 21.01910828 Simplifying r = 21.01910828
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