This is a real classroom lecture on Differential Equations. In this lecture I cover section 2.3 which is on linear equations. These lectures follow the book A First Course in Differential Equations by Dennis Zill. This is a great book for learning differential equations. Here is the book https://amzn.to/4ajOMyW (affiliate link).
This course uses Zill's book on DE's, this is my review of the book,
https://www.youtube.com/watch?v=M6o3Sp-LeJo&
Here is my DE lecture playlist,
https://www.youtube.com/playlist?list=PLO1y6V1SXjjO-wHEYaM-2yyNU28RqEyLX
Here is my DE playlist(shorter videos),
https://www.youtube.com/playlist?list=PLO1y6V1SXjjOxAE4cqHXhD2dsO8cnlick
I hope this video helps someone.