Respuesta :
[tex] \frac{x - 1}{x - 1} = 1 \\ \\ 1. \: {x}^{2} - 1 - x = x \\ 2. \: {x}^{2} - 1 - x - x = 0 \\ 3. \: {x}^{2} - 1 - 2x = 0 \\ 4. \: x = \frac{2 + 2 \sqrt{2} }{2} \frac{2 - 2 \sqrt{2} }{2} \\ 5. \: x = 1 + \sqrt{2} \: \: 1 - \sqrt{2} [/tex]