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Simplifying 9u2 + 81 = 0 Reorder the terms: 81 + 9u2 = 0 Solving 81 + 9u2 = 0 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-81' to each side of the equation. 81 + -81 + 9u2 = 0 + -81 Combine like terms: 81 + -81 = 0 0 + 9u2 = 0 + -81 9u2 = 0 + -81 Combine like terms: 0 + -81 = -81 9u2 = -81 Divide each side by '9'. u2 = -9 Simplifying u2 = -9 Reorder the terms: 9 + u2 = -9 + 9 Combine like terms: -9 + 9 = 0 9 + u2 = 0 The solution to this equation could not be determined.
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