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Practice — Maths 9 • Inequalities and systems of inequalities

Неравенства и их системы
Difficulty: ★★☆
1308

Решите систему неравенств:

\[\left\{\begin{aligned}2x-2\ge x-8\\ -2x+7<-5\end{aligned}\right.\]

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Неравенства и их системы
Difficulty: ★★☆
1309

Решите неравенство:

\[(2x-6)(x+1)<0\]

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Неравенства и их системы
Difficulty: ★★☆
1310

Решите неравенство:

\[-1\le -2x+3<5\]

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Неравенства и их системы
Difficulty: ★★☆
1311

Решите неравенство:

\[x^2+10x\ge 0\]

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Неравенства и их системы
Difficulty: ★★☆
1312

Решите систему неравенств:

\[\left\{\begin{aligned}3x-5\ge x-15\\ -2x+1>-1\end{aligned}\right.\]

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