помогите
[tex] \frac{x}{20 - x} = \frac{1}{x} [/tex]

ОДЗx ≠ 0; x ≠ 2020 - x = x^2x^2 + x - 20 = 0D = 1 + 4*20 = 81x1 = ( - 1 + 9)/2 = 8/2 = 4x2 = ( - 1  - 9)/2 = - 10/2 = - 5ОТВЕТ- 5; 4