https://www.youtube.com/playlist?list=PL_h1k2DY0Uk-T_tA0CNgDK3SrnE-PKf2T
We solve a system of three equations with three unknowns using #Gaussian #elimination (also known as Gauss elimination or row reduction).
Lecture Notes Are Available Here https://github.com/mukherjeekoushiklearning/Matrix-Algebra-for-Beginners-