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Simplifying 3(3n + 9) = 7n + -3 Reorder the terms: 3(9 + 3n) = 7n + -3 (9 * 3 + 3n * 3) = 7n + -3 (27 + 9n) = 7n + -3 Reorder the terms: 27 + 9n = -3 + 7n Solving 27 + 9n = -3 + 7n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-7n' to each side of the equation. 27 + 9n + -7n = -3 + 7n + -7n Combine like terms: 9n + -7n = 2n 27 + 2n = -3 + 7n + -7n Combine like terms: 7n + -7n = 0 27 + 2n = -3 + 0 27 + 2n = -3 Add '-27' to each side of the equation. 27 + -27 + 2n = -3 + -27 Combine like terms: 27 + -27 = 0 0 + 2n = -3 + -27 2n = -3 + -27 Combine like terms: -3 + -27 = -30 2n = -30 Divide each side by '2'. n = -15 Simplifying n = -15
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