This precalculus video tutorial provides a basic introduction into matrices. It covers matrix notation and how to determine the order of a matrix and the value of the elements inside a matrix. This video also covers the addition and subtraction of matrices as well as the scalar multiplication of matrices. Introduction to Matrices: https://www.youtube.com/watch?v=yRwQ7A6jVLk Adding and Subtracting Matrices: https://www.youtube.com/watch?v=QXUbFzEd3Ww Scalar Multiplication of Matrices: https://www.youtube.com/watch?v=iJERwUVuwtY Solving Matrix Equations: https://www.youtube.com/watch?v=UHhvcj0doaA Multiplying Matrices: https://www.youtube.com/watch?v=vzt9c7iWPxs __________________________________ Gaussian Elimination & Row Echelon Form: https://www.youtube.com/watch?v=eDb6iugi6Uk Gauss Jordan Elimination: https://www.youtube.com/watch?v=eYSASx8_nyg Gaussian Elimination With 4 Variables: https://www.youtube.com/watch?v=4VAXv6yRULU Inverse of a 2x2 Matrix: https://www.youtube.com/watch?v=aiBgjz5xbyg Inverse of a 3x3 Matrix: https://www.youtube.com/watch?v=Fg7_mv3izR0 __________________________________ Determinant of 2x2 and 3x3 Matrix: https://www.youtube.com/watch?v=3ROzG6n4yMc Determinant of 4x4 Matrix: https://www.youtube.com/watch?v=fWzUwrt1Z0s Cramer's Rule - 2x2 Linear System: https://www.youtube.com/watch?v=vXqlIOX2itM Cramer's Rule - 3x3 Linear System: https://www.youtube.com/watch?v=Ot87qLTODdQ ___________________________________ Final Exams and Video Playlists: https://www.video-tutor.net/ Full-Length Videos and Worksheets: https://www.patreon.com/MathScienceTutor/collections