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Simplifying (n + 2) + (2n + 5) = 0 Reorder the terms: (2 + n) + (2n + 5) = 0 Remove parenthesis around (2 + n) 2 + n + (2n + 5) = 0 Reorder the terms: 2 + n + (5 + 2n) = 0 Remove parenthesis around (5 + 2n) 2 + n + 5 + 2n = 0 Reorder the terms: 2 + 5 + n + 2n = 0 Combine like terms: 2 + 5 = 7 7 + n + 2n = 0 Combine like terms: n + 2n = 3n 7 + 3n = 0 Solving 7 + 3n = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 3n = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 3n = 0 + -7 3n = 0 + -7 Combine like terms: 0 + -7 = -7 3n = -7 Divide each side by '3'. n = -2.333333333 Simplifying n = -2.333333333
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