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Simplifying 19.45 = -8.6r + -12.8 Reorder the terms: 19.45 = -12.8 + -8.6r Solving 19.45 = -12.8 + -8.6r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '8.6r' to each side of the equation. 19.45 + 8.6r = -12.8 + -8.6r + 8.6r Combine like terms: -8.6r + 8.6r = 0.0 19.45 + 8.6r = -12.8 + 0.0 19.45 + 8.6r = -12.8 Add '-19.45' to each side of the equation. 19.45 + -19.45 + 8.6r = -12.8 + -19.45 Combine like terms: 19.45 + -19.45 = 0.00 0.00 + 8.6r = -12.8 + -19.45 8.6r = -12.8 + -19.45 Combine like terms: -12.8 + -19.45 = -32.25 8.6r = -32.25 Divide each side by '8.6'. r = -3.75 Simplifying r = -3.75
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