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Simplifying 20 = -2(n + 6) + 6n Reorder the terms: 20 = -2(6 + n) + 6n 20 = (6 * -2 + n * -2) + 6n 20 = (-12 + -2n) + 6n Combine like terms: -2n + 6n = 4n 20 = -12 + 4n Solving 20 = -12 + 4n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-4n' to each side of the equation. 20 + -4n = -12 + 4n + -4n Combine like terms: 4n + -4n = 0 20 + -4n = -12 + 0 20 + -4n = -12 Add '-20' to each side of the equation. 20 + -20 + -4n = -12 + -20 Combine like terms: 20 + -20 = 0 0 + -4n = -12 + -20 -4n = -12 + -20 Combine like terms: -12 + -20 = -32 -4n = -32 Divide each side by '-4'. n = 8 Simplifying n = 8
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