$ sudo apt-get remove a7xpg 

Uninstall a7xpg including dependent package

If you would like to remove a7xpg and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove a7xpg 

Use Purging a7xpg

If you use with purge options to a7xpg package all the configuration and dependent packages will be removed.

$ sudo apt-get purge a7xpg 

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove a7xpg 

See Also,