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Simplifying 4 = -2(10n + 7) Reorder the terms: 4 = -2(7 + 10n) 4 = (7 * -2 + 10n * -2) 4 = (-14 + -20n) Solving 4 = -14 + -20n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '20n' to each side of the equation. 4 + 20n = -14 + -20n + 20n Combine like terms: -20n + 20n = 0 4 + 20n = -14 + 0 4 + 20n = -14 Add '-4' to each side of the equation. 4 + -4 + 20n = -14 + -4 Combine like terms: 4 + -4 = 0 0 + 20n = -14 + -4 20n = -14 + -4 Combine like terms: -14 + -4 = -18 20n = -18 Divide each side by '20'. n = -0.9 Simplifying n = -0.9
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