$ sudo apt-get update
$ sudo apt-get install mbrola-br3 

mbrola-br3 is installed in your system.

Make ensure the mbrola-br3 package were installed using the commands given below,

$ sudo dpkg-query -l | grep mbrola-br3 *

You will get with mbrola-br3 package name, version, architecture and description in a table

mbrola-br3 package basic information: