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Simplifying 8.1r + -7.6 = -18.4 + 2.7r Reorder the terms: -7.6 + 8.1r = -18.4 + 2.7r Solving -7.6 + 8.1r = -18.4 + 2.7r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2.7r' to each side of the equation. -7.6 + 8.1r + -2.7r = -18.4 + 2.7r + -2.7r Combine like terms: 8.1r + -2.7r = 5.4r -7.6 + 5.4r = -18.4 + 2.7r + -2.7r Combine like terms: 2.7r + -2.7r = 0.0 -7.6 + 5.4r = -18.4 + 0.0 -7.6 + 5.4r = -18.4 Add '7.6' to each side of the equation. -7.6 + 7.6 + 5.4r = -18.4 + 7.6 Combine like terms: -7.6 + 7.6 = 0.0 0.0 + 5.4r = -18.4 + 7.6 5.4r = -18.4 + 7.6 Combine like terms: -18.4 + 7.6 = -10.8 5.4r = -10.8 Divide each side by '5.4'. r = -2 Simplifying r = -2
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