T
tobe_shindaemon
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
sai đề p' ko nhỉ
tìm x thuộc z:
4<|x+3|<5
...............................................................................................................................................
tìm x thuộc z:
4<|x+3|<5
...............................................................................................................................................