Очень срочно математика
распишите действия

1) Решите уравнение: 5/33 ∶ ( 3/8 − х ) = 10/11
2) Выполните действия: ( 3/4 ∶ 9/10 − 7/8 ∙ 1/7 ) ∶ ( 5/12 + 1/18 )
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