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Gaussian Elimination with Back Substitution

Learn how to solve systems of equations using Gaussian Elimination with back substitution in this free math video tutorial by Mario's Math Tutoring. We go through 2 examples using augmented matrices. 0:18 Example 1 0:19 Writing Augmented Matrix 0:47 Rules for Gaussian Elimination 4:35 Back Substitution 5:25 Writing Solution as a Triple 6:23 Example 2 6:32 Writing Augmented Matrix 11:19 Back Substitution 12:04 Writing Answer as a Triple Related Videos: Gauss Jordan Elimination with Row Reduced Echelon Form    • Row Reduced Echelon Form   Looking to raise your math score on the ACT and new SAT? Check out my Huge ACT Math Video Course and my Huge SAT Math Video Course for sale at http://mariosmathtutoring.teachable.com For online 1-to-1 tutoring or more information about me see my website at: http://www.mariosmathtutoring.com Learn Algebra 1 Lesson by Lesson in my "Learn Algebra 1" video course for sale. 87 Lessons teaching you step by step Algebra 1. Check out the 13 free lessons(1 from each chapter) https://mariosmathtutoring.teachable.... Organized List of My Video Lessons to Help You Raise Your Scores & Pass Your Class. Videos Arranged by Math Subject as well as by Chapter/Topic. (Bookmark the Link Below) http://www.mariosmathtutoring.com/fre...