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Simplifying -3(3r + 9) = -6r + -8 Reorder the terms: -3(9 + 3r) = -6r + -8 (9 * -3 + 3r * -3) = -6r + -8 (-27 + -9r) = -6r + -8 Reorder the terms: -27 + -9r = -8 + -6r Solving -27 + -9r = -8 + -6r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '6r' to each side of the equation. -27 + -9r + 6r = -8 + -6r + 6r Combine like terms: -9r + 6r = -3r -27 + -3r = -8 + -6r + 6r Combine like terms: -6r + 6r = 0 -27 + -3r = -8 + 0 -27 + -3r = -8 Add '27' to each side of the equation. -27 + 27 + -3r = -8 + 27 Combine like terms: -27 + 27 = 0 0 + -3r = -8 + 27 -3r = -8 + 27 Combine like terms: -8 + 27 = 19 -3r = 19 Divide each side by '-3'. r = -6.333333333 Simplifying r = -6.333333333
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