6 0 Exercise 3.4 Consider the following system of linear equations: 8x1 +12 3.01 +502 + 7 4.6) + 9x2 -2 = 0 (a) Formulate the system of lincar equations given above as a matrix equation of the form Ax=b, where x denotes the 2 x 1 column vector (21 29). Specify the elements of A and b. (b) Solve the matrix equation formulated in Part (a) to determine the elements of the solution vector x'. (c) Is x* found in Part (b) the exact solution? Explain