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Simplifying n + -39 + 3(3n + 3) = 0 Reorder the terms: n + -39 + 3(3 + 3n) = 0 n + -39 + (3 * 3 + 3n * 3) = 0 n + -39 + (9 + 9n) = 0 Reorder the terms: -39 + 9 + n + 9n = 0 Combine like terms: -39 + 9 = -30 -30 + n + 9n = 0 Combine like terms: n + 9n = 10n -30 + 10n = 0 Solving -30 + 10n = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + 10n = 0 + 30 Combine like terms: -30 + 30 = 0 0 + 10n = 0 + 30 10n = 0 + 30 Combine like terms: 0 + 30 = 30 10n = 30 Divide each side by '10'. n = 3 Simplifying n = 3
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