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Simplifying 61 = 3.9r + 28.9 Reorder the terms: 61 = 28.9 + 3.9r Solving 61 = 28.9 + 3.9r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3.9r' to each side of the equation. 61 + -3.9r = 28.9 + 3.9r + -3.9r Combine like terms: 3.9r + -3.9r = 0.0 61 + -3.9r = 28.9 + 0.0 61 + -3.9r = 28.9 Add '-61' to each side of the equation. 61 + -61 + -3.9r = 28.9 + -61 Combine like terms: 61 + -61 = 0 0 + -3.9r = 28.9 + -61 -3.9r = 28.9 + -61 Combine like terms: 28.9 + -61 = -32.1 -3.9r = -32.1 Divide each side by '-3.9'. r = 8.230769231 Simplifying r = 8.230769231
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