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Simplifying -5(r + 2) = -84 Reorder the terms: -5(2 + r) = -84 (2 * -5 + r * -5) = -84 (-10 + -5r) = -84 Solving -10 + -5r = -84 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + -5r = -84 + 10 Combine like terms: -10 + 10 = 0 0 + -5r = -84 + 10 -5r = -84 + 10 Combine like terms: -84 + 10 = -74 -5r = -74 Divide each side by '-5'. r = 14.8 Simplifying r = 14.8
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