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Simplifying -9 = -3(n + 5) Reorder the terms: -9 = -3(5 + n) -9 = (5 * -3 + n * -3) -9 = (-15 + -3n) Solving -9 = -15 + -3n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '3n' to each side of the equation. -9 + 3n = -15 + -3n + 3n Combine like terms: -3n + 3n = 0 -9 + 3n = -15 + 0 -9 + 3n = -15 Add '9' to each side of the equation. -9 + 9 + 3n = -15 + 9 Combine like terms: -9 + 9 = 0 0 + 3n = -15 + 9 3n = -15 + 9 Combine like terms: -15 + 9 = -6 3n = -6 Divide each side by '3'. n = -2 Simplifying n = -2
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