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2. the inverse of the coefficient matrix (15 points) 3. the value of the unknowns (any method) (15 points)Answer and show your complete and clear solution. Answers should be in its simplest form. Given the system of linear equation: w + y/b- z/2=7/3 W- X =-3 w + 2y + 32 = -1 cw + y - 32 = 4 where w, x, y and z are variables/ unknowns while a, b, c and d are constants. Determine the following: 1. the determinant of the coefficient matrix using the pivotal element method (10 points) You have your own assigned pivotal element. Please be guided accordingly. For example, NAMO, GUIAN CARLO AURESTILA will use element a14 of the coefficient matrix as her pivotal element