Published at LXer:

This tutorial shows how you can set up a Linux Mint 9 (Isadora) desktop that is a full-fledged replacement for a Windows desktop, i.e. that has all the software that people need to do the things they do on their Windows desktops. The advantages are clear: you get a secure system without DRM restrictions that works even on old hardware, and the best thing is: all software comes free of charge. Linux Mint 9 is a Linux distribution based on Ubuntu 10.04 that has lots of packages in its repositories (like multimedia codecs, Adobe Flash, Adobe Reader, Skype, Google Earth, etc.) that are relatively hard to install on other distributions; it therefore provides a user-friendly desktop experience even for Linux newbies.

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since i already have a linux mint 9 how do i install opera ? my linux is not letting me install it. what site is a good site to go to ? when i try to install it again i will let you know what happens

Just read the article, it is explained in there.

my understanding is slow and i do not understand all of what is being said in there.

In short terms: Open your package manager (Synaptic) and type Opera into the search bar, look at the given packages, do a right-click on Opera and mark as "To be installed", then apply your choices.
Or, somewhat simpler: Open a terminal (Click on your Menu, then Accessories, then choose terminal). Then type into the terminalYou will be asked for your password, keep in mind that it will not be shown and the cursor will not move while typing.