Here's some help . . .
. .1) What is the augmented matrix for: .
. .2) Perform the row operation on the matrix: .
. . Multiply by
. .3) Perform the sequence of row operations on: .
A: swap and
B: replace by plus times
C: replace by plus times
4) If possible, solve the system of equation using Gaussian elimination with back-substitution.
The determinant is . . . I expect a very messy elimination.
I'll let someone else work on it . . .
5) If possible solve the system of equation using an inverse matrix.
Not possible . . . the determinant is .