First, install all of TensorFlow and CUDA's dependencies:
$ # When prompted: Keep the local version currently installed
$ curl https://gist.githubusercontent.com/kern/ab56600768b9f4fc1f72/raw/8d0b86a678d1398be2b82ac6e4ab1f8ad0698f01/install_deps.sh | sh
Wait for reboot, then run:
$ # When prompted: Scroll all the way down > accept > y > y > y > default (/usr/local/cuda-7.0) > y > n
$ curl https://gist.githubusercontent.com/kern/ab56600768b9f4fc1f72/raw/8d0b86a678d1398be2b82ac6e4ab1f8ad0698f01/install_nvidia.sh | sh