Ideally, there should be both a Physical and ebook text companion. If that is not a possibility, I would recommend trying to find a cheap used Algebra textbook somewhere or checking out the local library. Also don't knock out e/books youtube videos before you try it. Algebra is basically working at a problem one at a time on a piece of paper. On youtube/ebook the example is on a screen instead of a piece of paper. I actually use both physical books and youtube videos to learn math (to help my kids do their homework of course
). I use the following youtube channel when I need help with math.