решить систему уравнений х/3=-у/4 х+у=5 - №15135528

решить систему уравнений х/3=-у/4 х+у=5
- Предмет:
  Алгебра
- Автор:
  oompa loompay75n
- 6 лет назад

Ответы 1

4x=-3yx=-3y/4 подставим -3у/4+у=5-3у+4у=20у=20 х=-60/4. х=-15.
- Автор:
  rufuskqmp
- 6 лет назад
- 0
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