Решите уравнения : 1)−x = 20 2)− (−x) = −1 - №28245694

Решите уравнения :

1)−x = 20
2)− (−x) = −1
- Предмет:
  Математика
- Автор:
  paigembgg
- 5 лет назад

Ответы 1

1)-x=20-x=20Ответ:-202)-x(-x)=1 x²=1 x=1 x=-1 x1=-1,x2=1Ответ:x1=-1,x2=1
- Автор:
  cabrera73
- 5 лет назад
- 0
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