Sist. ecuaciones 3 incógnitas

"Sist. ecuaciones 3 incógnitas" is an Android app by Editorial Editex S.A. that helps users solve linear systems of 3 unknowns using Cramer and Gauss methods. It features a theory section with a PDF summary, a practice section for solution methods and their geometric interpretation, a test section for self-assessment with randomly selected exercises, and a problems section that includes example solutions and additional proposed problems for users to tackle.