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Simplifying 7x2 + 9y2 = 63 Solving 7x2 + 9y2 = 63 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9y2' to each side of the equation. 7x2 + 9y2 + -9y2 = 63 + -9y2 Combine like terms: 9y2 + -9y2 = 0 7x2 + 0 = 63 + -9y2 7x2 = 63 + -9y2 Divide each side by '7'. x2 = 9 + -1.285714286y2 Simplifying x2 = 9 + -1.285714286y2 Reorder the terms: -9 + x2 + 1.285714286y2 = 9 + -1.285714286y2 + -9 + 1.285714286y2 Reorder the terms: -9 + x2 + 1.285714286y2 = 9 + -9 + -1.285714286y2 + 1.285714286y2 Combine like terms: 9 + -9 = 0 -9 + x2 + 1.285714286y2 = 0 + -1.285714286y2 + 1.285714286y2 -9 + x2 + 1.285714286y2 = -1.285714286y2 + 1.285714286y2 Combine like terms: -1.285714286y2 + 1.285714286y2 = 0.000000000 -9 + x2 + 1.285714286y2 = 0.000000000 The solution to this equation could not be determined.
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