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Simplifying -20 + 3n = -2(3n) Remove parenthesis around (3n) -20 + 3n = -2 * 3n Multiply -2 * 3 -20 + 3n = -6n Solving -20 + 3n = -6n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '6n' to each side of the equation. -20 + 3n + 6n = -6n + 6n Combine like terms: 3n + 6n = 9n -20 + 9n = -6n + 6n Combine like terms: -6n + 6n = 0 -20 + 9n = 0 Add '20' to each side of the equation. -20 + 20 + 9n = 0 + 20 Combine like terms: -20 + 20 = 0 0 + 9n = 0 + 20 9n = 0 + 20 Combine like terms: 0 + 20 = 20 9n = 20 Divide each side by '9'. n = 2.222222222 Simplifying n = 2.222222222
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