Question 1120844
Use the given row transformation to change the matrix as indicated.
<pre>
6    5   6
5   -2   7;   -6 times row added to row 1
2    2    1

-6 times row2 --> -30   12  -42
-30   12  -42
  6    5    6
--------------------------- Add
-24   17   -36
-----
  6    5    6
-24   17  -36
  2    2    1

</pre>