Предмет: Математика, автор: murzinjulia

Спростіть вираз та знайдіть його значення: 5/21 а + 4/7 а - 2/3 а, якщо a = 2 1/3

Ответы

Автор ответа: resqwang

0

7a=7*7=49 (a=21/7=7)

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