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a230104
@a230104
August 2022
1
10
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Помогите номер 1137 . Ответ 350 кг. Решить уравнением .
А номер 1138, ответ 6 3/10 кг . Тоже уравнением
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NaaMan
1137. Привезли Х кг. Тогда Х - 2/7х = 2/7х + 150
х - 4/7х = 150
3/7х = 150
х = 150 : 3/7 = 150 * 7/3 = 350 кг
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х - 4/7х = 150
3/7х = 150
х = 150 : 3/7 = 150 * 7/3 = 350 кг