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Simplifying 7238 = 4(3.14) * r Multiply 4 * 3.14 7238 = 12.56r Solving 7238 = 12.56r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-12.56r' to each side of the equation. 7238 + -12.56r = 12.56r + -12.56r Combine like terms: 12.56r + -12.56r = 0.00 7238 + -12.56r = 0.00 Add '-7238' to each side of the equation. 7238 + -7238 + -12.56r = 0.00 + -7238 Combine like terms: 7238 + -7238 = 0 0 + -12.56r = 0.00 + -7238 -12.56r = 0.00 + -7238 Combine like terms: 0.00 + -7238 = -7238 -12.56r = -7238 Divide each side by '-12.56'. r = 576.2738854 Simplifying r = 576.2738854
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