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Simplifying 3n + 15 = 2n + 20 Reorder the terms: 15 + 3n = 2n + 20 Reorder the terms: 15 + 3n = 20 + 2n Solving 15 + 3n = 20 + 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. 15 + 3n + -2n = 20 + 2n + -2n Combine like terms: 3n + -2n = 1n 15 + 1n = 20 + 2n + -2n Combine like terms: 2n + -2n = 0 15 + 1n = 20 + 0 15 + 1n = 20 Add '-15' to each side of the equation. 15 + -15 + 1n = 20 + -15 Combine like terms: 15 + -15 = 0 0 + 1n = 20 + -15 1n = 20 + -15 Combine like terms: 20 + -15 = 5 1n = 5 Divide each side by '1'. n = 5 Simplifying n = 5
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