Предмет: Алгебра, автор: Аноним

ПОМОГИТЕ ПОЖАЛУЙСТА ОТДАЮ ПОСЛЕДНИЕ БАЛЛЫ, СДЕЛАЙТЕ ПОШАГОВОЕ ОБЪЯСНЕНИЕ

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Автор ответа: igundane

$\left\{\begin{matrix}2x+9>6x-5\\ \frac{x}{2}\geq -1\end{matrix}\right.\Leftrightarrow \left\{\begin{matrix}4x<14\\ x\geq -2\end{matrix}\right.\Rightarrow x\in \left [ -2 ;\frac{7}{2}\right )\\-2-1+0+1+2+3=3$

Автор ответа: manyny06

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решение смотри на фотографии

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