$ sudo apt-get update
$ sudo apt-get install libelmersolver-dbg 

libelmersolver-dbg is installed in your system.

Make ensure the libelmersolver-dbg package were installed using the commands given below,

$ sudo dpkg-query -l | grep libelmersolver-dbg *

You will get with libelmersolver-dbg package name, version, architecture and description in a table

libelmersolver-dbg package basic information: