Предмет: Алгебра, автор: Roxi21

Спрости вираз 4(0,5x+y)−7(4x−y) і знайди його значення, якщо x=5 і y=4.

Ответы

Автор ответа: tamarasova

2

Ответ:

4(0,5x+y)-7(4x-y)=2x+4y-28x+7y=-26x+11y

при х=5, y=4

-26*5+11*4= -130+44=-86

Объяснение:

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