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Simplifying -9x2 + 2y2 = 18 Solving -9x2 + 2y2 = 18 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. -9x2 + 2y2 + -2y2 = 18 + -2y2 Combine like terms: 2y2 + -2y2 = 0 -9x2 + 0 = 18 + -2y2 -9x2 = 18 + -2y2 Divide each side by '-9'. x2 = -2 + 0.2222222222y2 Simplifying x2 = -2 + 0.2222222222y2 Reorder the terms: 2 + x2 + -0.2222222222y2 = -2 + 0.2222222222y2 + 2 + -0.2222222222y2 Reorder the terms: 2 + x2 + -0.2222222222y2 = -2 + 2 + 0.2222222222y2 + -0.2222222222y2 Combine like terms: -2 + 2 = 0 2 + x2 + -0.2222222222y2 = 0 + 0.2222222222y2 + -0.2222222222y2 2 + x2 + -0.2222222222y2 = 0.2222222222y2 + -0.2222222222y2 Combine like terms: 0.2222222222y2 + -0.2222222222y2 = 0.0000000000 2 + x2 + -0.2222222222y2 = 0.0000000000 The solution to this equation could not be determined.
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