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2. Найдите неизвестное. b) \( \qquad \) \( \div 7=(-12) \) c) \( (-99) \div \) \( \qquad \) \( =11 \) a) \( \qquad \) \( +(-9)=7 \) e) \( 54 \div \) \( \qquad \) \( =9 \) d) \( \qquad \) \( +9=(-1) \) h) \( \qquad \) \( \div(-4)=8 \) i) \( (-60) \div \square=(-10) \) g) \( +7=10 \)

Ask by Perkins Marshall. in Uzbekistan
Jan 21,2025

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- b) -84 - c) -9 - a) 16 - e) 6 - d) -10 - h) -32 - i) 6 - g) 3

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Чтобы найти неизвестные в каждом уравнении, нужно использовать основные операции. В первом случае \( x \) делим на 7, чтобы получить -12. Таким образом, \( x = -12 \times 7 = -84 \). Во втором уравнении \( (-99) \div x = 11 \) можно умножить 11 на x, что дает \( x = -99 \div 11 = -9 \). Продолжая, \( x = 7 - (-9) = 16 \) для первой задачи. В других уравнениях, продолжая таким же образом, вы получите: \( 54 \div 6 = 9 \), \( -1 - 9 = -10 \), \( x \div (-4) = 8 \) означает, что \( x = 8 \times (-4) = -32 \), и уравнение \( -60 \div x = -10 \) приводит к \( x = 6 \).

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