Предмет: Математика, автор: nikol567

помогите !!! 25-3а=9-5а

Ответы

Автор ответа: netovanet

1

25 - 9 = -5а +3 а
16 = -2 а
а = -8

Автор ответа: miron2077

3

-3а+5а=9-25
2а=-16
а=-16:2
а=-8

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: anastasiia08052

Помогите пожалуйста ответить на этот текст вопросы
The working day of an engineer.
Comrade Petrov works at an office. He lives near the office. He usually walks there. He only works five days a week. He works on Monday, Tuesday, Wednesday, Thursday and Friday. Hi doesn’t work at the week-end. His working day lasts eight hours. He receives very many letters and telegrams in the morning and always answers them. He sometimes translates articles from foreign newspapers and journals. He often receives engineers from factories in the afternoon. They discuss a lot of questions with him. He usually finishes work at six o’clock in the evening.
Comrade Petrov learns English. He works hard at his English. He sometimes stays in the office after work for his English lessons. After classes he returns home.

13. What does he do on Sunday?

14. Does he usually stay in Moscow over the week-e

15. What does he usually do at the week-end?,

16. Who does he often stay with over the week-end?

b) 1. Do you live far from your office (factory)?

2. Do you often walk to yeur office?

3. Do you like walking?

4. Do you usually go for walks in the morning or in the evening?

5. Who do you take out for a walk?

6. How long does your working day last?

7. What do you often discuss during your working day?

8. What time do you stop work and go home?

9. Do you work at the week-end?

10. What do you usually do at the week-end?

11. What are you going to do this week-end?

12. Are you going to stay at home over the week-end?

13. Are you going to Leningrad (Kiev) for the week-end?

14. What are you going to do (on) Saturday evening?

15. What are you going to do on Sunday?

1 год назад

Предмет: Русский язык, автор: 21032008

подобрать сходное по значению слово к слову путешествие с непроизносимой согласной и сочетанием СН ,ЗН

1 год назад

Предмет: Українська література, автор: Катюша12390

Римляни назвали грецьких богів по своєму. Серед запропонованих пар "грецьке ім'я бога- римське ім'я бога" є ПОМИЛКА. Знайдіть її

а) Зевс- Юпітер
б) Гера- Венера
в) Афіна- Мінерва
г) Посейдон- Нептун
д) Геракл- Геркулес

1 год назад

Предмет: Алгебра, автор: nikatanya007

Помогите решить 3(x-y)/-xy(x-y)

7 лет назад

Предмет: Алгебра, автор: vladteslitsky

1.4 найти разность векторов

7 лет назад