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Simplifying 15 = -2n + -5n Combine like terms: -2n + -5n = -7n 15 = -7n Solving 15 = -7n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '7n' to each side of the equation. 15 + 7n = -7n + 7n Combine like terms: -7n + 7n = 0 15 + 7n = 0 Add '-15' to each side of the equation. 15 + -15 + 7n = 0 + -15 Combine like terms: 15 + -15 = 0 0 + 7n = 0 + -15 7n = 0 + -15 Combine like terms: 0 + -15 = -15 7n = -15 Divide each side by '7'. n = -2.142857143 Simplifying n = -2.142857143
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