Предмет: Алгебра, автор: evgeniy2007ev

Помогите пожалуйста алгебра 8 класс . СРОЧНО!!!! Это 4 задание​

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Автор ответа: Avantgardе
0

\dfrac{14}x-\dfrac4{x+20}=0\\\\\dfrac{14(x+20)-4x}{x(x+20)}=0\,;\qquad ODZ:\ \ x(x+20)\ne0\,; \ \ => \ \ x\ne -20;\ 0\\\\14x+280-4x=0\\10x=-280\\x=-28

Уравнение не имеет смысла при x =

-20 и 0

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