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Simplifying -5(r + 6) = -86 Reorder the terms: -5(6 + r) = -86 (6 * -5 + r * -5) = -86 (-30 + -5r) = -86 Solving -30 + -5r = -86 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + -5r = -86 + 30 Combine like terms: -30 + 30 = 0 0 + -5r = -86 + 30 -5r = -86 + 30 Combine like terms: -86 + 30 = -56 -5r = -56 Divide each side by '-5'. r = 11.2 Simplifying r = 11.2
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