Question 865678

Divide row1 by 3
1	 1/3	 13/3
2	 -7	 24

Add (-2 * row1) to row2
1	 1/3	 13/3
0	 -23/3	 46/3

Divide row2 by -23/3
1	 1/3	 13/3
0	 1	 -2

Add (-1/3 * row2) to row1
1	 0	 5
0	 1	 -2