Предмет: Алгебра, автор: laneerlamer1

Помогите пожалуйста.Только ответ

Приложения:

Ответы

Автор ответа: drakerton

Ответ:

$11,375$

Объяснение:

$\frac{1}{t-10} - \frac{9}{t+10} = \frac{1}{t-10} \cdot \frac{9}{t+10}\\\\ODZ: \\\\t\neq 10\\\\t\neq-10\\\\t + 10 - 9(t - 10) = 9\\\\t + 10 - 9t + 90 = 9\\\\t - 9t = 9 - 10 - 90\\\\-8t = -91\\\\t = \frac{91}{8} = 11\frac{3}{8} = 11,375$

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