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Simplifying 7n + 2 + 3n = 12 Reorder the terms: 2 + 7n + 3n = 12 Combine like terms: 7n + 3n = 10n 2 + 10n = 12 Solving 2 + 10n = 12 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 10n = 12 + -2 Combine like terms: 2 + -2 = 0 0 + 10n = 12 + -2 10n = 12 + -2 Combine like terms: 12 + -2 = 10 10n = 10 Divide each side by '10'. n = 1 Simplifying n = 1
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