So, you must have another column. You can read off the bottom 2 rows for the answer, but the top row i syour problem. You waat 0's in the 2nd and 3rd columns. This is actually pretty simple. First, how would we get the 8 to be a zero?Well, the bottom row has a 1 below the 8, so the bottom row should help with this. What about -8R3+R1. That would take care of 1 zero. So, do the same thing for the -3, but using the 2nd row this time.