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Simplifying n + n + -3 = 396 Reorder the terms: -3 + n + n = 396 Combine like terms: n + n = 2n -3 + 2n = 396 Solving -3 + 2n = 396 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + 2n = 396 + 3 Combine like terms: -3 + 3 = 0 0 + 2n = 396 + 3 2n = 396 + 3 Combine like terms: 396 + 3 = 399 2n = 399 Divide each side by '2'. n = 199.5 Simplifying n = 199.5
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