I have a Raspberry Pi 3, and it comes preinstalled with Mathematica 10, I was hoping someone could tell me if installing version 11.0 is possible?
Depending upon all things configuration, from the terminal on an aged New Out Of Box Software RPi try
sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade
to upgrade Mathmatica to 11 along with everything else.
sudo apt-get install wolfram-engine
may work as well.