Решите систему линейных уравнений 2x+3y=5; 3x−y=−9. - №10388572

Решите систему линейных уравнений
2x+3y=5;
3x−y=−9.
- Предмет:
  Алгебра
- Автор:
  fuzzy6pkh
- 5 лет назад

Ответы 1

2x+3y=5y=3x+92x+3(3x+9)=5y=3x+92x+9x+27=5y=3x+911x=-22y=3x+9x=-2y=3*(-2)+9=3x=-2y=3
- Автор:
  speedoer6w
- 5 лет назад
- 0
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