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Simplifying 54 = 3.14r * 2 Reorder the terms for easier multiplication: 54 = 3.14 * 2r Multiply 3.14 * 2 54 = 6.28r Solving 54 = 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. 54 + -6.28r = 6.28r + -6.28r Combine like terms: 6.28r + -6.28r = 0.00 54 + -6.28r = 0.00 Add '-54' to each side of the equation. 54 + -54 + -6.28r = 0.00 + -54 Combine like terms: 54 + -54 = 0 0 + -6.28r = 0.00 + -54 -6.28r = 0.00 + -54 Combine like terms: 0.00 + -54 = -54 -6.28r = -54 Divide each side by '-6.28'. r = 8.598726115 Simplifying r = 8.598726115
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