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Simplifying 12(r + 12) = -96 Reorder the terms: 12(12 + r) = -96 (12 * 12 + r * 12) = -96 (144 + 12r) = -96 Solving 144 + 12r = -96 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-144' to each side of the equation. 144 + -144 + 12r = -96 + -144 Combine like terms: 144 + -144 = 0 0 + 12r = -96 + -144 12r = -96 + -144 Combine like terms: -96 + -144 = -240 12r = -240 Divide each side by '12'. r = -20 Simplifying r = -20
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