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Simplifying x2 = -21 Solving x2 = -21 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Simplifying x2 = -21 Reorder the terms: 21 + x2 = -21 + 21 Combine like terms: -21 + 21 = 0 21 + x2 = 0 The solution to this equation could not be determined.
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