Consider the system of linear equations below. X1 + x3 = x1 + x2 + 2x3...

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Consider the system of linear equations below. X1 + x3 = x1 + x2 + 2x3 = X1 X2 X3 = - 4 -3 1 (a) The system can be written in the form Ax = b. Write the coefficient matrix A and then find its inverse by row reducing the augmented matrix [A13]. [4 marks] [2 marks] (b) Using the inverse of A you have found in (a), solve Ax = b to find x. Consider the system of linear equations below. X1 + x3 = x1 + x2 + 2x3 = X1 X2 X3 = - 4 -3 1 (a) The system can be written in the form Ax = b. Write the coefficient matrix A and then find its inverse by row reducing the augmented matrix [A13]. [4 marks] [2 marks] (b) Using the inverse of A you have found in (a), solve Ax = b to find x.

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