Предмет: Математика, автор: vika6697


помогите пожалуйста
​

Приложения:

Ответы

Автор ответа: lakOR555
0

Ответ:

(10,12)

Пошаговое объяснение:

умножим первое уравнение на 6, чтобы избавиться от дробей

3х-2у-6=0

-2у=6-3х

у=1,5х-3

х/5 - (1,5х-3)/4 + 1 = 0

умножим на 20, чтобы избавится от дробей

4х-7,5х+15+20=0

-3,5х=-35

х=10

у= 1,5*10-3 = 12

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