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Simplifying 13.1r + 1.84 = 12.7r Reorder the terms: 1.84 + 13.1r = 12.7r Solving 1.84 + 13.1r = 12.7r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-12.7r' to each side of the equation. 1.84 + 13.1r + -12.7r = 12.7r + -12.7r Combine like terms: 13.1r + -12.7r = 0.4r 1.84 + 0.4r = 12.7r + -12.7r Combine like terms: 12.7r + -12.7r = 0.0 1.84 + 0.4r = 0.0 Add '-1.84' to each side of the equation. 1.84 + -1.84 + 0.4r = 0.0 + -1.84 Combine like terms: 1.84 + -1.84 = 0.00 0.00 + 0.4r = 0.0 + -1.84 0.4r = 0.0 + -1.84 Combine like terms: 0.0 + -1.84 = -1.84 0.4r = -1.84 Divide each side by '0.4'. r = -4.6 Simplifying r = -4.6
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