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Simplifying -2(n + 5) + -4 = -20 Reorder the terms: -2(5 + n) + -4 = -20 (5 * -2 + n * -2) + -4 = -20 (-10 + -2n) + -4 = -20 Reorder the terms: -10 + -4 + -2n = -20 Combine like terms: -10 + -4 = -14 -14 + -2n = -20 Solving -14 + -2n = -20 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + -2n = -20 + 14 Combine like terms: -14 + 14 = 0 0 + -2n = -20 + 14 -2n = -20 + 14 Combine like terms: -20 + 14 = -6 -2n = -6 Divide each side by '-2'. n = 3 Simplifying n = 3
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