Стр 184 номер 552*. Задание с выбором ответа. Решите уравнения
1 ) 7 8/3х - 4 1/х = 3 1/3
2 ) 3 1/6х + 4 1/3х = 7 1/4
3 ) 8 1/3х - 2 1/5х = 6 1/30
А.2 В.7 С.5 D.4
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