Interchanging two rows in a 3x3 matrix

Interchanging two rows in a matrix

Multiplying a matrix row by a scalar (negative 4 times row 3)

Multiplying a matrix row by a scalar constant

Adding two rows of a matrix to form a new row

Adding two rows of a matrix to form a new row

Adding scaled rows: combining 3R1 and 2R4 in a matrix

Computing 2R2 minus R1 to find the new row 2 of a matrix

Multiplying a row by a scalar and adding it to another row

Combining two scaled rows to replace a row in a 4x3 matrix