I tried by following the instructions described here but they don't work. It looks like the repository mentioned in those instructions is actually not working:

http://fedora.vitu.ch/QGIS/7/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found

I was unable to find any other working method. This other repo I was able to find only goes up to CentOS 6: http://elgis.argeo.org/

Any help would be appreciated. Thank you.