In Linux in general going from the iso to a bootable USB is very simple. Plug in a USB stick and make sure it is not mounted. Let's assume it is /dev/sdb. Then you just say:
sudo dd if=/path/to/iso/file of=/dev/sdb
Here follows an important disclaimer: please be careful not to invert if (= Input File) and of (Output File), it could have disastrous consequences.
If you do not know how to make sure that the (unmount) stick is /dev/sdb, you can first mount it
sudo mount /dev/sdb1 /mnt
and then unmount it,
sudo umount /mnt
If sdb1 does not work, then the stick may be sdc1, sdd1, ...
Also note that, in the dd statement, there is no '1' after /dev/sdb. This might be /dev/sdc, /dev/sdd on the basis of what you ascertained by mounting and unmounting it, but it is not sdb1, sdc1, sdd1 (this would not have catastrophic consequences, it would just not give you a bootable disk).
When dd'ing is over, unplug your stick and you are ready to go.