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Simplifying x2 + -2xy + y2 = 7 Reorder the terms: -2xy + x2 + y2 = 7 Solving -2xy + x2 + y2 = 7 Solving for variable 'x'. Reorder the terms: -7 + -2xy + x2 + y2 = 7 + -7 Combine like terms: 7 + -7 = 0 -7 + -2xy + x2 + y2 = 0 The solution to this equation could not be determined.
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