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Simplifying 9x * 9x + -4y * 4y = 121 Reorder the terms for easier multiplication: 9 * 9x * x + -4y * 4y = 121 Multiply 9 * 9 81x * x + -4y * 4y = 121 Multiply x * x 81x2 + -4y * 4y = 121 Reorder the terms for easier multiplication: 81x2 + -4 * 4y * y = 121 Multiply -4 * 4 81x2 + -16y * y = 121 Multiply y * y 81x2 + -16y2 = 121 Solving 81x2 + -16y2 = 121 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16y2' to each side of the equation. 81x2 + -16y2 + 16y2 = 121 + 16y2 Combine like terms: -16y2 + 16y2 = 0 81x2 + 0 = 121 + 16y2 81x2 = 121 + 16y2 Divide each side by '81'. x2 = 1.49382716 + 0.1975308642y2 Simplifying x2 = 1.49382716 + 0.1975308642y2 Reorder the terms: -1.49382716 + x2 + -0.1975308642y2 = 1.49382716 + 0.1975308642y2 + -1.49382716 + -0.1975308642y2 Reorder the terms: -1.49382716 + x2 + -0.1975308642y2 = 1.49382716 + -1.49382716 + 0.1975308642y2 + -0.1975308642y2 Combine like terms: 1.49382716 + -1.49382716 = 0.00000000 -1.49382716 + x2 + -0.1975308642y2 = 0.00000000 + 0.1975308642y2 + -0.1975308642y2 -1.49382716 + x2 + -0.1975308642y2 = 0.1975308642y2 + -0.1975308642y2 Combine like terms: 0.1975308642y2 + -0.1975308642y2 = 0.0000000000 -1.49382716 + x2 + -0.1975308642y2 = 0.0000000000 The solution to this equation could not be determined.
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