Given the following row operations using Gauss-Jordan Elimination, fill in the missing matrix: Write augmented matrix - 1 Do LD L - 4 -1 R3 0 -920 -1 -2 1 18 -35 B , + R , + R, R3 7 Rgt R, -3 - 5 |-2 - 4 - 3 - 3 R, R,+ 9 R3 R , + R, + 1 RX 21 R37 Rg- HR, - 10 41 9 .: X = 2 RX -> Rx+ R3 -20 = - 3 -1 2 RX> RJ 4R2 2 7 -20 1 -1 19 R , 3 R, + Rg ? 137 Rg- 32 0 26 -39 D -29