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Simplifying -7 + 7n + 8 = 12 Reorder the terms: -7 + 8 + 7n = 12 Combine like terms: -7 + 8 = 1 1 + 7n = 12 Solving 1 + 7n = 12 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 7n = 12 + -1 Combine like terms: 1 + -1 = 0 0 + 7n = 12 + -1 7n = 12 + -1 Combine like terms: 12 + -1 = 11 7n = 11 Divide each side by '7'. n = 1.571428571 Simplifying n = 1.571428571
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