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Simplifying 20 + 2n = -7(n + -8) Reorder the terms: 20 + 2n = -7(-8 + n) 20 + 2n = (-8 * -7 + n * -7) 20 + 2n = (56 + -7n) Solving 20 + 2n = 56 + -7n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '7n' to each side of the equation. 20 + 2n + 7n = 56 + -7n + 7n Combine like terms: 2n + 7n = 9n 20 + 9n = 56 + -7n + 7n Combine like terms: -7n + 7n = 0 20 + 9n = 56 + 0 20 + 9n = 56 Add '-20' to each side of the equation. 20 + -20 + 9n = 56 + -20 Combine like terms: 20 + -20 = 0 0 + 9n = 56 + -20 9n = 56 + -20 Combine like terms: 56 + -20 = 36 9n = 36 Divide each side by '9'. n = 4 Simplifying n = 4
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