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Simplifying 4n + 20 = 2n + 40 Reorder the terms: 20 + 4n = 2n + 40 Reorder the terms: 20 + 4n = 40 + 2n Solving 20 + 4n = 40 + 2n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2n' to each side of the equation. 20 + 4n + -2n = 40 + 2n + -2n Combine like terms: 4n + -2n = 2n 20 + 2n = 40 + 2n + -2n Combine like terms: 2n + -2n = 0 20 + 2n = 40 + 0 20 + 2n = 40 Add '-20' to each side of the equation. 20 + -20 + 2n = 40 + -20 Combine like terms: 20 + -20 = 0 0 + 2n = 40 + -20 2n = 40 + -20 Combine like terms: 40 + -20 = 20 2n = 20 Divide each side by '2'. n = 10 Simplifying n = 10
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