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Simplifying -9(n + 1) + -4 + 5n = -15n Reorder the terms: -9(1 + n) + -4 + 5n = -15n (1 * -9 + n * -9) + -4 + 5n = -15n (-9 + -9n) + -4 + 5n = -15n Reorder the terms: -9 + -4 + -9n + 5n = -15n Combine like terms: -9 + -4 = -13 -13 + -9n + 5n = -15n Combine like terms: -9n + 5n = -4n -13 + -4n = -15n Solving -13 + -4n = -15n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '15n' to each side of the equation. -13 + -4n + 15n = -15n + 15n Combine like terms: -4n + 15n = 11n -13 + 11n = -15n + 15n Combine like terms: -15n + 15n = 0 -13 + 11n = 0 Add '13' to each side of the equation. -13 + 13 + 11n = 0 + 13 Combine like terms: -13 + 13 = 0 0 + 11n = 0 + 13 11n = 0 + 13 Combine like terms: 0 + 13 = 13 11n = 13 Divide each side by '11'. n = 1.181818182 Simplifying n = 1.181818182
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