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Simplifying -1(2n + -15) = 7 Reorder the terms: -1(-15 + 2n) = 7 (-15 * -1 + 2n * -1) = 7 (15 + -2n) = 7 Solving 15 + -2n = 7 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + -2n = 7 + -15 Combine like terms: 15 + -15 = 0 0 + -2n = 7 + -15 -2n = 7 + -15 Combine like terms: 7 + -15 = -8 -2n = -8 Divide each side by '-2'. n = 4 Simplifying n = 4
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