It's a handy thing to be able to do, and not just for those who want to study engineering or computers or higher math.
Daily life has many unknowns.
Now in this space, we can't teach all the algebra needed to solve all the mathematical unknowns in your life. What we will do today is go over a couple of equation basics. Consider it a little refresher session for those of you who have studied algebra in the past, and an introduction for those of you who have never seen it before. In algebra, the thing that is unknown is called a variable. Do not turn the page.