I can’t give you any algebra advice but I have some life advice if you care. Whatever you do, don’t give up. I gave up around your age, didn’t learn anything in highschool and my girlfriend did all my math work for me through the online credit recovery class. Now I’m 24 and in college and struggling to do basic algebra because of that and in the same boat because I can’t do the zoom classes. Keep pushing though because it will get better soon and you’re already doing better than most people out of highschool. Check out the Mathway app(paid to get solving steps), Socratic app(free), and photo math app(free). Don’t use it to just do all of your assignments. You can use it to have it solve the problem and take your time on a subject. I can’t really see the remote learning thing lasting too much longer so don’t sabotage your next year because of this.