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Simplifying 1200 = 2000r * 10 Reorder the terms for easier multiplication: 1200 = 2000 * 10r Multiply 2000 * 10 1200 = 20000r Solving 1200 = 20000r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-20000r' to each side of the equation. 1200 + -20000r = 20000r + -20000r Combine like terms: 20000r + -20000r = 0 1200 + -20000r = 0 Add '-1200' to each side of the equation. 1200 + -1200 + -20000r = 0 + -1200 Combine like terms: 1200 + -1200 = 0 0 + -20000r = 0 + -1200 -20000r = 0 + -1200 Combine like terms: 0 + -1200 = -1200 -20000r = -1200 Divide each side by '-20000'. r = 0.06 Simplifying r = 0.06
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