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Simplifying 20n + 7 = 13n + 28 Reorder the terms: 7 + 20n = 13n + 28 Reorder the terms: 7 + 20n = 28 + 13n Solving 7 + 20n = 28 + 13n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-13n' to each side of the equation. 7 + 20n + -13n = 28 + 13n + -13n Combine like terms: 20n + -13n = 7n 7 + 7n = 28 + 13n + -13n Combine like terms: 13n + -13n = 0 7 + 7n = 28 + 0 7 + 7n = 28 Add '-7' to each side of the equation. 7 + -7 + 7n = 28 + -7 Combine like terms: 7 + -7 = 0 0 + 7n = 28 + -7 7n = 28 + -7 Combine like terms: 28 + -7 = 21 7n = 21 Divide each side by '7'. n = 3 Simplifying n = 3
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