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Simplifying 2n + 8 + -1n = 20 Reorder the terms: 8 + 2n + -1n = 20 Combine like terms: 2n + -1n = 1n 8 + 1n = 20 Solving 8 + 1n = 20 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + 1n = 20 + -8 Combine like terms: 8 + -8 = 0 0 + 1n = 20 + -8 1n = 20 + -8 Combine like terms: 20 + -8 = 12 1n = 12 Divide each side by '1'. n = 12 Simplifying n = 12
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