Предмет: Математика, автор: sakuraxd21

4 + 7(5 - y) = -10y+9

Ответы

Автор ответа: nastyaenn

6

4 + 7(5-y) = - 10y + 9
4+35-7y= -10 +9
-7y+10y= 9- 4 - 35
3y = -30
y= - 30: 3
y = -10
Ответ: -10

Автор ответа: Hallux

5

раскроем скобки
4+35-7у=-10у+9
С у в одну, без у в другую
3у=9-4-35
3у= - 30
у= - 30/3
у= - 10

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