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Simplifying 13n + -3(n + 1) = 137 Reorder the terms: 13n + -3(1 + n) = 137 13n + (1 * -3 + n * -3) = 137 13n + (-3 + -3n) = 137 Reorder the terms: -3 + 13n + -3n = 137 Combine like terms: 13n + -3n = 10n -3 + 10n = 137 Solving -3 + 10n = 137 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 + 10n = 137 + 3 Combine like terms: -3 + 3 = 0 0 + 10n = 137 + 3 10n = 137 + 3 Combine like terms: 137 + 3 = 140 10n = 140 Divide each side by '10'. n = 14 Simplifying n = 14
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