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Simplifying 2n + 4 = 25 + -5n Reorder the terms: 4 + 2n = 25 + -5n Solving 4 + 2n = 25 + -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. 4 + 2n + 5n = 25 + -5n + 5n Combine like terms: 2n + 5n = 7n 4 + 7n = 25 + -5n + 5n Combine like terms: -5n + 5n = 0 4 + 7n = 25 + 0 4 + 7n = 25 Add '-4' to each side of the equation. 4 + -4 + 7n = 25 + -4 Combine like terms: 4 + -4 = 0 0 + 7n = 25 + -4 7n = 25 + -4 Combine like terms: 25 + -4 = 21 7n = 21 Divide each side by '7'. n = 3 Simplifying n = 3
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