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Simplifying 10y2 + -9x2 = 90 Reorder the terms: -9x2 + 10y2 = 90 Solving -9x2 + 10y2 = 90 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10y2' to each side of the equation. -9x2 + 10y2 + -10y2 = 90 + -10y2 Combine like terms: 10y2 + -10y2 = 0 -9x2 + 0 = 90 + -10y2 -9x2 = 90 + -10y2 Divide each side by '-9'. x2 = -10 + 1.111111111y2 Simplifying x2 = -10 + 1.111111111y2 Reorder the terms: 10 + x2 + -1.111111111y2 = -10 + 1.111111111y2 + 10 + -1.111111111y2 Reorder the terms: 10 + x2 + -1.111111111y2 = -10 + 10 + 1.111111111y2 + -1.111111111y2 Combine like terms: -10 + 10 = 0 10 + x2 + -1.111111111y2 = 0 + 1.111111111y2 + -1.111111111y2 10 + x2 + -1.111111111y2 = 1.111111111y2 + -1.111111111y2 Combine like terms: 1.111111111y2 + -1.111111111y2 = 0.000000000 10 + x2 + -1.111111111y2 = 0.000000000 The solution to this equation could not be determined.
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