Предмет: Алгебра, автор: ariell3996

помогите пж пж пж пж

Приложения:

Ответы

Автор ответа: senkevich517

0

1) (3х-1)+(2-5х) = 3х-1+2-5х= -2х+1 (ну или 1-2х)

2) 3b- (-b+a) = 3b+b-a = 4b+a

3) (6x²+x) + (-x²+2x) = 6x²+x-x²+2x= 5x²+3x

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: missgorica

ПЛИЗЗЗ,ПОМОЩЬ)))К КАЖДОМУ ПРЕДЛОЖЕНИЮ УКАЖИТЕ ВРЕМЯ present continuous,present perfect,present simple или present perfect continuous
1. We have known each other for four years.
2. I have always wanted to study English.
3. Where is Nina? — She has been at home for two hours.
4. Where are the children? — They are still playing in the yard.
5. My brother has been an engineer for three years.
6. My friend has known English since childhood.
7. I have already been watching you for half an hour.
8. Is your brother still ill? — No, he has already recovered. He has already been studying physics for three days., He wants to get an excellent mark for (in) the exam.
9.I have wanted to read this book for a long time.
10. I have already been trying to find my old exercise book for twenty minutes. 11. They have already been living in New York for ten years.
12. My aunt is an actress. She has always liked the theatre.
13. Has your father returned from the North yet? — Yes, he has been at home for two weeks.
14.I have been thinking of it for three days already.
15. My sister drinks white coffee. And I have always preferred black coffee.
16. We are very glad to see you. We have been waiting for you (for) the whole month.
17. Are you still reading this book? How long have you been reading it? 18. My sister has already been studying music for five years.
19. I have been looking for you the whole evening. Where have you been all the time?
20. They have already been writing the essay for two hours.

1 год назад

Предмет: Русский язык, автор: Valeria1631

ой наконец то! вот и мой. какое предложение по интонации?

1 год назад

Предмет: Русский язык, автор: veklich2016

найди слова с мягким согласным перед согласным-девочка.мальчик.ребята.ученик.ученица. учитель. учительница. альбом. карандаш. пальто. пенал. портфель. тетрадь

1 год назад

Предмет: Английский язык, автор: asyabrem

Помогите, пожалуйста

7 лет назад

Предмет: Информатика, автор: cccp555

Укажите смертельный уровень звука?

7 лет назад