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Simplifying 175 = 3.14r * 21 Reorder the terms for easier multiplication: 175 = 3.14 * 21r Multiply 3.14 * 21 175 = 65.94r Solving 175 = 65.94r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-65.94r' to each side of the equation. 175 + -65.94r = 65.94r + -65.94r Combine like terms: 65.94r + -65.94r = 0.00 175 + -65.94r = 0.00 Add '-175' to each side of the equation. 175 + -175 + -65.94r = 0.00 + -175 Combine like terms: 175 + -175 = 0 0 + -65.94r = 0.00 + -175 -65.94r = 0.00 + -175 Combine like terms: 0.00 + -175 = -175 -65.94r = -175 Divide each side by '-65.94'. r = 2.653927813 Simplifying r = 2.653927813
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