Answer :
Algebra is just replacing numbers with symbols. Usually x and/or y. if x=3 then 5x=15. this is the basic idea of algebra is that you take real and imaginary numbers and make a symbol of it and find what he symbol mean.
algebra is numbers and variable's. You will learn a bit of it in 6th grade.you have to find x or do some other things.
https://www.youtube.com/watch?v=3vDoEVRS_7s
^^^ gives a good example I do Not own the video all rights go to the owner. its on you tube!