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Simplifying -27 = r * 12 + -19 Reorder the terms for easier multiplication: -27 = 12r + -19 Reorder the terms: -27 = -19 + 12r Solving -27 = -19 + 12r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-12r' to each side of the equation. -27 + -12r = -19 + 12r + -12r Combine like terms: 12r + -12r = 0 -27 + -12r = -19 + 0 -27 + -12r = -19 Add '27' to each side of the equation. -27 + 27 + -12r = -19 + 27 Combine like terms: -27 + 27 = 0 0 + -12r = -19 + 27 -12r = -19 + 27 Combine like terms: -19 + 27 = 8 -12r = 8 Divide each side by '-12'. r = -0.6666666667 Simplifying r = -0.6666666667
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