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Simplifying 7n2 + 39 + -18 = 0 Reorder the terms: 39 + -18 + 7n2 = 0 Combine like terms: 39 + -18 = 21 21 + 7n2 = 0 Solving 21 + 7n2 = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + 7n2 = 0 + -21 Combine like terms: 21 + -21 = 0 0 + 7n2 = 0 + -21 7n2 = 0 + -21 Combine like terms: 0 + -21 = -21 7n2 = -21 Divide each side by '7'. n2 = -3 Simplifying n2 = -3 Reorder the terms: 3 + n2 = -3 + 3 Combine like terms: -3 + 3 = 0 3 + n2 = 0 The solution to this equation could not be determined.
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