x:5+x:9=42 как решить - №20698268

x:5+x:9=42
как решить
- Предмет:
  Математика
- Автор:
  floresq5sy
- 6 лет назад

Ответы 1

Умножим на 5 и 9 получим9x+5x=42*5*914x=1890x=1890:14x=135ответ: 135
- Автор:
  george95
- 6 лет назад
- 0
Добавить свой ответ

Еще вопросы

Имя учёного, которого внёс большой вклад в российскую науку, создал научную химическую лабораторию, изучал природные богатства родной земли, занимался физикой, химией, географией, геологией, астрономией.
- Предмет:
  Окружающий мир
- Автор:
  helena
- 6 лет назад
- Ответов:
  
  1
- Смотреть
СРОЧНО! ПОМОГИТЕ ПОЖАЛУЙСТА.

Мальчик ростом 1м50см стоит на расстоянии 3м от стены дома,а длина его тени от укреплённого на этой стене фоноря равна 50см. На какой высоте укреплен фонарь?Ответ дайте в метрах
- Предмет:
  Алгебра
- Автор:
  ian5rcs
- 6 лет назад
- Ответов:
  
  1
- Смотреть
Раскройте скобки, употребляя глаголы в нужном времени.

1.We (to go) on a tramp last Sunday. 2. Your brother (to go) to the country with us next Sunday? 3. Granny (not to cook) dinner now. 4. We (to cook) our meals on a fire last summer. 5. My sister (to wash) the dishes every morning. 6. When you (to go) to school? 7. What you (to prepare) for breakfast tomorrow? 8. You (to invite) your cousin to stay with you next summer? 9. How you (to help) your sister last summer? 10. I (to send) a letter to my friend tomorrow. 11. Every morning on the way to school I (to meet) my friends. 12. My friend (to go) to the library every Wednesday. 13. He (not to go) to the country yesterday. 14. Why you (to go) to the shop yesterday? 15. We (to grow) tomatoes next summer. 16. What you (to do) now? 17. He (to sleep) now. 18. Where your father (to work) last year? 19. You (to go) to the south next summer! 20. He (not to watch) TV yesterday. 21. Yesterday we (to write) a test-paper. 22. 1 (to buy) a very good book last Tuesday. 23. My granny (not to buy) bread yesterday. 24. What you (to buy) at the shop tomorrow? 25. Don't make noise! Father(to work). Various kinds of sports (to be) popular in England. Both children and grown-ups (to be) fond of sports. What (to be) the matter with her? She (to be) so excited. - I (not to know). Where you (to go)? - - I (to go) to the to see the match which (to take) place there today. You (to know) that a very interesting match (to take) place last Sunday? He (to go) to the south a week ago. When I (to be) about fifteen years old, I (to enjoy) playing football. Our football team (to win) many games last year. Where (to be) Barry? - He (to play) chess with his friend. I (to be) sorry I (to miss) the match yesterday. But I (to know) the score. It (to be) 4 to 2 in favour of the NTP team. Nellie (to leave) for Jacksonville tomorrow. I (to be) in a hurry. My friends (to wait) for me. You (to be) at the theatre yesterday. You (to like) the opera? — Oh yes, I (to enjoy) it greatly. You (to go) to London next summer?
- Предмет:
  Английский язык
- Автор:
  lucyxhoh
- 6 лет назад
- Ответов:
  
  1
- Смотреть
Отрезки BD и DC на рисунке 76 равны. Сравните углы ABC и ACB
- Предмет:
  Геометрия
- Автор:
  nyla
- 6 лет назад
- Ответов:
  
  1
- Смотреть

How much to ban the user?

1 hour 1 day 100 years