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Simplifying 3n + -12 + -2n = -42 Reorder the terms: -12 + 3n + -2n = -42 Combine like terms: 3n + -2n = 1n -12 + 1n = -42 Solving -12 + 1n = -42 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + 1n = -42 + 12 Combine like terms: -12 + 12 = 0 0 + 1n = -42 + 12 1n = -42 + 12 Combine like terms: -42 + 12 = -30 1n = -30 Divide each side by '1'. n = -30 Simplifying n = -30
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