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Simplifying 7n + 4(5 + -1n) = -5 + -2n 7n + (5 * 4 + -1n * 4) = -5 + -2n 7n + (20 + -4n) = -5 + -2n Reorder the terms: 20 + 7n + -4n = -5 + -2n Combine like terms: 7n + -4n = 3n 20 + 3n = -5 + -2n Solving 20 + 3n = -5 + -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. 20 + 3n + 2n = -5 + -2n + 2n Combine like terms: 3n + 2n = 5n 20 + 5n = -5 + -2n + 2n Combine like terms: -2n + 2n = 0 20 + 5n = -5 + 0 20 + 5n = -5 Add '-20' to each side of the equation. 20 + -20 + 5n = -5 + -20 Combine like terms: 20 + -20 = 0 0 + 5n = -5 + -20 5n = -5 + -20 Combine like terms: -5 + -20 = -25 5n = -25 Divide each side by '5'. n = -5 Simplifying n = -5
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