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Simplifying 1r + 8.2 + 0.4r = 8.6 Reorder the terms: 8.2 + 1r + 0.4r = 8.6 Combine like terms: 1r + 0.4r = 1.4r 8.2 + 1.4r = 8.6 Solving 8.2 + 1.4r = 8.6 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-8.2' to each side of the equation. 8.2 + -8.2 + 1.4r = 8.6 + -8.2 Combine like terms: 8.2 + -8.2 = 0.0 0.0 + 1.4r = 8.6 + -8.2 1.4r = 8.6 + -8.2 Combine like terms: 8.6 + -8.2 = 0.4 1.4r = 0.4 Divide each side by '1.4'. r = 0.2857142857 Simplifying r = 0.2857142857
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