Автор - Gfthvfthbvghbv

Решите равнение 20/x-18=18/x-20

Ответ

Проверено экспертом

Автор - Rooomaa

 frac{20}{x - 18}  =  frac{18}{x - 20}   \ 20(x - 20) = 18(x - 18) \ 20x - 400 = 18x - 324 \ 20x - 18x =  - 324 + 400 \ 2x = 76 \ x = 38

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