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Simplifying n + (2n + 7) + (2n + 7) = 122 Reorder the terms: n + (7 + 2n) + (2n + 7) = 122 Remove parenthesis around (7 + 2n) n + 7 + 2n + (2n + 7) = 122 Reorder the terms: n + 7 + 2n + (7 + 2n) = 122 Remove parenthesis around (7 + 2n) n + 7 + 2n + 7 + 2n = 122 Reorder the terms: 7 + 7 + n + 2n + 2n = 122 Combine like terms: 7 + 7 = 14 14 + n + 2n + 2n = 122 Combine like terms: n + 2n = 3n 14 + 3n + 2n = 122 Combine like terms: 3n + 2n = 5n 14 + 5n = 122 Solving 14 + 5n = 122 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 + 5n = 122 + -14 Combine like terms: 14 + -14 = 0 0 + 5n = 122 + -14 5n = 122 + -14 Combine like terms: 122 + -14 = 108 5n = 108 Divide each side by '5'. n = 21.6 Simplifying n = 21.6
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