Do your students need help with substituting an integer, term or expression BEFORE actually solving a system? If so, this self-checking/self-guiding MAZE is for you!!A self-checking digital maze made on Google Sheets and Excel is a fun and interactive way for students to practice substituting an integer, term, and expression before actually solving a system of equations. This type of activity is especially helpful for students who struggle with algebraic concepts or who may make common mistakes