2x-7=-5

2x=-5+7

2x=2

=> x= 1

60

lỗi òi

Số gạo còn lại tương ứng với:

100%-25%-30%=45%

Ngày thứ nhất cửa hàng bán được số gạo là:

4095:45*25=2275(kg)

Ngày thứ hai cửa hàng bán được số gạo là:

4095:45*30=2730(kg)

1. give

2. practices

3. will see, will you see

4. gave

5. are meeting

6. did you go, got

7. live, don't see

8. will go

9. saw, was

10. are you going to stay

11. is coming

12. is knocking

1. It's nice to see them again.

2. It's difficult to give an exact figure

3. It's interesting to talk to you.

4. We're pleased that you are here

5. It's hard to find a good interpreter

6. I'm confident that you will get the job. 

7. I'm pleased that you're getting better

8. We're glad that you escaped safety the building

II.

1. beautiful

2. diferent

3. fluenty

4. interesting

5. preparing

II.

6. it

7. your

8. action

9. acting

10. performance

II.

17. raining

18. inviting

19. lovely

20. friendly

21. lucky

22. performance

B

1. a

2. d

3. c

4. b

5. b

6. b

7. a

8. a

đồng bằng, đồng bằng là dạng địa hình thấp có bề mặt khá bằng phẳng hoặc gợn sóng, cao dưới 200m so với mực nước biển