\(\frac{3}{5}x+\frac{2}{3}=\frac{4}{5}\)

\(\Leftrightarrow\frac{3}{5}x=\frac{4}{5}-\frac{2}{3}=\frac{2}{15}\)

\(\Leftrightarrow x=\frac{2}{15}:\frac{3}{5}=\frac{10}{45}=\frac{2}{9}\)

\(\left|\frac{1}{2}x+\frac{3}{5}\right|=\frac{1}{2}\)

\(\Leftrightarrow\orbr{\begin{cases}\frac{1}{2}x+\frac{3}{5}=\frac{1}{2}\\\frac{1}{2}x+\frac{3}{5}=-\frac{1}{2}\end{cases}}\)

chx có ok

3,5 = \(\frac{6}{10}\)

Vậy ta có phép tính 2/3 x 6/10

Chỗ này dễ quá và quen thuộc, bạn tự giải đi nha!

Nhớ tích nhớ!

1. He works the most effectively in my company

-> No one in my company works as effectively as him.

2. We didn't go to the theatre. We had a lot of work to do                                                                                           

-> Because we had a lot of work to do, we didn't go to the theater. 

3. You’ll hurt yourself if you aren’t careful.                                                                                                               

-> Unless you are careful, you will hurt yourself.

4. Many people have visited the exhibition                                                                                        

-> The exhibition has been visited by many people.

5. John began playing the piano ten years ago                                                                                                

-> John hasn’t played the piano for 10 years.

6. The man can't find the stolen car

-> The stolen car can't be found.

7. They have invented a new kind of medicine

-> A new kind of medicine has been invented.

8. Man will solve the problem of pollution in the future

-> The problem of pollution will be solved in the future by man.

9. Your son paid less attention to his study, didn’t he?

-> Did your son pay less attention to his study.

10. Living in the city is more convenient than living in the country

-> Living in the country isn’t as convenient as living in the country.