Помогите решить линейное уравнение с двумя переменными: 1)x+y=7 -x+2y= -4 2) x-y= -2 - №6033039

Помогите решить линейное уравнение с двумя переменными:
1)x+y=7
-x+2y= -4
2) x-y= -2
5x-2y=2
Помогите решить пожалуйста
- Предмет:
  Математика
- Автор:
  jordizw29
- 5 лет назад

Ответы 1

1) 3y=3; y=1x=7-y=7-1=62) x=y-25(y-2)-2y=2;5y-10-2y=2;3y=12;y=4;x=4-2=2
- Автор:
  monkey58
- 5 лет назад
- 0
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