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Simplifying -3(3n + 5) = -87 Reorder the terms: -3(5 + 3n) = -87 (5 * -3 + 3n * -3) = -87 (-15 + -9n) = -87 Solving -15 + -9n = -87 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + -9n = -87 + 15 Combine like terms: -15 + 15 = 0 0 + -9n = -87 + 15 -9n = -87 + 15 Combine like terms: -87 + 15 = -72 -9n = -72 Divide each side by '-9'. n = 8 Simplifying n = 8
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