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Simplifying 257.48 = 2r * 3.14 Reorder the terms for easier multiplication: 257.48 = 2 * 3.14r Multiply 2 * 3.14 257.48 = 6.28r Solving 257.48 = 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. 257.48 + -6.28r = 6.28r + -6.28r Combine like terms: 6.28r + -6.28r = 0.00 257.48 + -6.28r = 0.00 Add '-257.48' to each side of the equation. 257.48 + -257.48 + -6.28r = 0.00 + -257.48 Combine like terms: 257.48 + -257.48 = 0.00 0.00 + -6.28r = 0.00 + -257.48 -6.28r = 0.00 + -257.48 Combine like terms: 0.00 + -257.48 = -257.48 -6.28r = -257.48 Divide each side by '-6.28'. r = 41 Simplifying r = 41
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