Multiply a Row by a Constant. In this operation we multiply row i by a constant c and the notation will utilizes here is cRi . Note that we can also divide a row by a constant by using the notation (1/c)Ri . Following is an example.
Thus, while we say we will multiply a row by a constant this actually means that we will multiply each entry in that row by the constant. Watch out for signs in the operation and ensure that you multiply every entry.