[Vex C++] How to make a tank drive

I know this is a very simple and kind of a stupid question but I’m very new to C++ programming (I used EasyC before V5) and I was wondering if anyone could help me understand how to make a simple tank control so that I can move forward in learning VCS.

Here is an example tank drive over on Robot Mesh Studio (which is 95% the same as VCS for C++).