Помогите решить систему 1/x + 2/y = 10 3/x - 1/y = 9 - Дата: 24.07.2019, Автор: nibblespm2g

Помогите решить систему
1/x + 2/y = 10
3/x - 1/y = 9
- Предмет:
  Алгебра
- Автор:
  nibblespm2g
- 6 лет назад

Ответы 2

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
- Автор:
  brock528
- 6 лет назад
- 0
1/x + 2/y = 10 3/x - 1/y = 9 |*21/x + 2/y = 106/x - 2/y = 18Способ сложения:(1/х + 2/у) + (6/х - 2/у) = 10 + 187/х = 2828х = 7х = 7/28 = 1/4х = 0,251/0,25 + 2/у = 104 + 2/у = 102/у = 10 - 42/у = 66у = 2у = 2/6 = 1/3у = 1/3
- Автор:
  bruiseroaid
- 6 лет назад
- 0
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Помогите решить систему 1/x + 2/y = 10 3/x - 1/y = 9

Ответы 2

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Помогите решить систему
1/x + 2/y = 10
3/x - 1/y = 9