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Simplifying -2(n + 5) + -18 = -42 Reorder the terms: -2(5 + n) + -18 = -42 (5 * -2 + n * -2) + -18 = -42 (-10 + -2n) + -18 = -42 Reorder the terms: -10 + -18 + -2n = -42 Combine like terms: -10 + -18 = -28 -28 + -2n = -42 Solving -28 + -2n = -42 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '28' to each side of the equation. -28 + 28 + -2n = -42 + 28 Combine like terms: -28 + 28 = 0 0 + -2n = -42 + 28 -2n = -42 + 28 Combine like terms: -42 + 28 = -14 -2n = -14 Divide each side by '-2'. n = 7 Simplifying n = 7
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