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Simplifying 12 + 2n = 40 Solving 12 + 2n = 40 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 + 2n = 40 + -12 Combine like terms: 12 + -12 = 0 0 + 2n = 40 + -12 2n = 40 + -12 Combine like terms: 40 + -12 = 28 2n = 28 Divide each side by '2'. n = 14 Simplifying n = 14
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