Question 318362
the task is to get 1's diagonally and zeroes everywhere else
___ I don't have the proper notational capabilities but will describe the steps


A. 1) swap rows one and two ___ [1  3  | 2] , [3  4  |  11]
___ 2) multiply row one by -3 and add to row two ___ [1  3  |  2] , [0  -5  |  5]
___ 3) multiply row two by -1/5 ___ [1  3  |  2] , [0  1  |  -1]
___ 4) multiply row two by -3 and add to row one ___ [1  0  |  5] , [0  1  |  -1]


B.  multiplying the 1st equation by 4 gives ___ 4x - 12y = 20
___ since this is the same as the 2nd equation, but with a different constant term, there is no solution for the system