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Simplifying n + 1 + n = -15 + -2n Reorder the terms: 1 + n + n = -15 + -2n Combine like terms: n + n = 2n 1 + 2n = -15 + -2n Solving 1 + 2n = -15 + -2n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '2n' to each side of the equation. 1 + 2n + 2n = -15 + -2n + 2n Combine like terms: 2n + 2n = 4n 1 + 4n = -15 + -2n + 2n Combine like terms: -2n + 2n = 0 1 + 4n = -15 + 0 1 + 4n = -15 Add '-1' to each side of the equation. 1 + -1 + 4n = -15 + -1 Combine like terms: 1 + -1 = 0 0 + 4n = -15 + -1 4n = -15 + -1 Combine like terms: -15 + -1 = -16 4n = -16 Divide each side by '4'. n = -4 Simplifying n = -4
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