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Simplifying 7n + -15 = 2n + 15 Reorder the terms: -15 + 7n = 2n + 15 Reorder the terms: -15 + 7n = 15 + 2n Solving -15 + 7n = 15 + 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 + 7n + -2n = 15 + 2n + -2n Combine like terms: 7n + -2n = 5n -15 + 5n = 15 + 2n + -2n Combine like terms: 2n + -2n = 0 -15 + 5n = 15 + 0 -15 + 5n = 15 Add '15' to each side of the equation. -15 + 15 + 5n = 15 + 15 Combine like terms: -15 + 15 = 0 0 + 5n = 15 + 15 5n = 15 + 15 Combine like terms: 15 + 15 = 30 5n = 30 Divide each side by '5'. n = 6 Simplifying n = 6
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