Here is a small script to manage several golang versions in Ubuntu.

GVM install video

wget 'https://raw.githubusercontent.com/fulldump/gvm/master/gvm.sh'; chmod +x gvm.sh; ./gvm.sh install

gvm set 1.7.5

That will download and configure your environment for golang 1.7.5.

If you want to see all installed versions:

gvm list