$ sudo apt-get update
$ sudo apt-get install libegl1-mesa 

libegl1-mesa is installed in your system.

Make ensure the libegl1-mesa package were installed using the commands given below,

$ sudo dpkg-query -l | grep libegl1-mesa *

You will get with libegl1-mesa package name, version, architecture and description in a table

libegl1-mesa package basic information: