consider also a video + book option that my son was able to get through fairly easily (age 14 at the time), and does cover systems of equations towards the end. the presenter/flow is very good at keeping a person's attention so it doesn't end up feeling like a lot of work.
http://www.thegreatcourses.com/courses/algebra-i.html


Last edited by chris1234; 02/18/16 06:28 AM.