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Simplifying 7n + 2(2n + 7) = 91 Reorder the terms: 7n + 2(7 + 2n) = 91 7n + (7 * 2 + 2n * 2) = 91 7n + (14 + 4n) = 91 Reorder the terms: 14 + 7n + 4n = 91 Combine like terms: 7n + 4n = 11n 14 + 11n = 91 Solving 14 + 11n = 91 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + 11n = 91 + -14 Combine like terms: 14 + -14 = 0 0 + 11n = 91 + -14 11n = 91 + -14 Combine like terms: 91 + -14 = 77 11n = 77 Divide each side by '11'. n = 7 Simplifying n = 7
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