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Simplifying 7n + 5 = 5n + 15 Reorder the terms: 5 + 7n = 5n + 15 Reorder the terms: 5 + 7n = 15 + 5n Solving 5 + 7n = 15 + 5n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-5n' to each side of the equation. 5 + 7n + -5n = 15 + 5n + -5n Combine like terms: 7n + -5n = 2n 5 + 2n = 15 + 5n + -5n Combine like terms: 5n + -5n = 0 5 + 2n = 15 + 0 5 + 2n = 15 Add '-5' to each side of the equation. 5 + -5 + 2n = 15 + -5 Combine like terms: 5 + -5 = 0 0 + 2n = 15 + -5 2n = 15 + -5 Combine like terms: 15 + -5 = 10 2n = 10 Divide each side by '2'. n = 5 Simplifying n = 5
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