Question: Please show working :) QUESTION 4 a) Use the inverse matrix method to solve the following system of equations ( note: use the Gauss-Jordan elimination

Please show working :)

QUESTION 4 a) Use the inverse matrix method to solve the following system of equations ( note: use the Gauss-Jordan elimination method to determine the required inverse matrix. Be sure to show your workings. If any other method, other than the Gauss-Jordan, is used or your workings not shown, you will be awarded a zero mark). 3x + 2y - z =9 2z - x +4y = 5 -2y+x+ z = 3 X b) Let matrix A = 2 2 If |A| = 0, find x -1 (x -4)

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