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Simplifying x2 + 2y2 = 9 Solving x2 + 2y2 = 9 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2y2' to each side of the equation. x2 + 2y2 + -2y2 = 9 + -2y2 Combine like terms: 2y2 + -2y2 = 0 x2 + 0 = 9 + -2y2 x2 = 9 + -2y2 Simplifying x2 = 9 + -2y2 Reorder the terms: -9 + x2 + 2y2 = 9 + -2y2 + -9 + 2y2 Reorder the terms: -9 + x2 + 2y2 = 9 + -9 + -2y2 + 2y2 Combine like terms: 9 + -9 = 0 -9 + x2 + 2y2 = 0 + -2y2 + 2y2 -9 + x2 + 2y2 = -2y2 + 2y2 Combine like terms: -2y2 + 2y2 = 0 -9 + x2 + 2y2 = 0 The solution to this equation could not be determined.
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