Create a matrix for this system of linear equations, the determinant of the coefficient matrix is

 The determinant of the coefficient matrix is -15 and x = 3, y = 4, z = 1.

Step-by-step explanation:  The given system of linear equations is :

We are given to find the determinant of the coefficient matrix and to find the values of x, y and z.

The determinant of the co-efficient matrix is given by

Now, from equations (ii) and (iii), we have

Substituting the value of y and z from equations (iv) and (v) in equation (i), we get

From equations (iv) and (v), we get

Thus, the determinant of the coefficient matrix is -15 and x = 3, y = 4, z = 1.

18a

step-by-step explanation:

simply because it is. it's the highest common factor

coin flip

non-answer:

choosing

sorry if this isnt what you're looking for i dont really understand the question