Предмет: Математика, автор: anna94338

Дробь две третьих делим на одну целую три пятых минус единица деленная на х равно одна двенадцатая

Ответы

Автор ответа: САндрейФ

2/3:8/5-1/х=1/12
10/24-1/х=1/12
(10х-24)/24х=1/12
(10х-24)/2х=1
10х-24=2х
8х=24
х=3

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