решите уравнения a) 4x-7=2x+15; б)-24+3x=9x+18

решите уравнения a) 4x-7=2x+15; б)-24+3x=9x+18
- Предмет:
  Математика
- Автор:
  buds
- 6 лет назад

Ответы 1

a) 4x - 7 = 2x + 154x - 2x = 15 + 72x = 22x = 11Проверка:4 * 11 - 7 = 2 * 11 + 1544 - 7 = 22 + 1537 = 37--------б) -24 + 3х = 9х + 189х - 3х = -24 - 186х = -42х = -7Проверка:-24 + 3 *(-7) = 9 * (-7) + 18-24 - 21 = -63 + 18-45 = -45Ответы: а) х = 11 б) х = -7
- Автор:
  calvin59
- 6 лет назад
- 0
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решите уравнения a) 4x-7=2x+15; б)-24+3x=9x+18

Ответы 1

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