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Simplifying 7y2 + -9x2 = 63 Reorder the terms: -9x2 + 7y2 = 63 Solving -9x2 + 7y2 = 63 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7y2' to each side of the equation. -9x2 + 7y2 + -7y2 = 63 + -7y2 Combine like terms: 7y2 + -7y2 = 0 -9x2 + 0 = 63 + -7y2 -9x2 = 63 + -7y2 Divide each side by '-9'. x2 = -7 + 0.7777777778y2 Simplifying x2 = -7 + 0.7777777778y2 Reorder the terms: 7 + x2 + -0.7777777778y2 = -7 + 0.7777777778y2 + 7 + -0.7777777778y2 Reorder the terms: 7 + x2 + -0.7777777778y2 = -7 + 7 + 0.7777777778y2 + -0.7777777778y2 Combine like terms: -7 + 7 = 0 7 + x2 + -0.7777777778y2 = 0 + 0.7777777778y2 + -0.7777777778y2 7 + x2 + -0.7777777778y2 = 0.7777777778y2 + -0.7777777778y2 Combine like terms: 0.7777777778y2 + -0.7777777778y2 = 0.0000000000 7 + x2 + -0.7777777778y2 = 0.0000000000 The solution to this equation could not be determined.
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