Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Matrix Row Operations
Find a quick, concise explanation of the three basic matrix row operations. Examples are given and clearly explained for each of the operations: switching rows, multiplying a row by a number and adding rows/multiples of rows.
Purple Math
Purplemath: Matrix Row Operations
Purplemath explains each of the elementary row operations and goes through explaining how each step is carried out and the common notation for each operation. The lesson ends with an example of how to solve an augmented matrix.