A bit of background to my question: last year I signed up for a refresher course in Maths at a university, because I seem to have forgotten most of what I learned in school about Maths but feel interest and need to get better at Maths though.
I take a course grouped into various segments. At the end of that (probably) multi-year journey stands the option to continue the course and study Maths at university level (to go for an associates degree or bachelor.)
In higher courses we will learn Calculus (which I never learned in school) and of course other advanced subjects. I read feedback from other students that being "algebraic competent" is very important to grok the more advanced topics, I also read on this website for example that "algebraic competency" is very important for Calculus and the lack thereof is often cause for struggling later on.
So, what would that "algebraic competency" be? Being able to manipulate even complex equations with ease? Or … something else? And how can I learn it?
Since this is my second try at the subject of Maths, and I also have more resources available to me than when I was young, I now have the option to already learn more about subjects that I can see will give me trouble later on.