Решите уравнение √12−6x=x

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1. 12 грн. цена сока

2. 16 грн. у неё осталось

Пошаговое объяснение:

1) 28/7=4(гр.)-1%

2) 4*3=12(гр.) цена сока

3)  28-12=16(гр.)