Solve the System of Equations by Using the Inverse of the Coefficient

question 107

Multiple Choice

Solve the system of equations by using the inverse of the coefficient matrix.
- $\begin{array}{rr}x-2 y+3 z & =3 \\y-z+w & =-6 \\-2 x+2 y-2 z+4 w & =-18 \\2 y-3 z+w & =-10\end{array}$

• A) \( (-2,3,3,-6) \)
• B) \( (-2,2,3,-5) \)
• C) \( (-3,2,4,-5) \)
• D) \( (-1,1,2,-4) \)

---

Definitions:

Verbal Message

A form of communication that involves the use of spoken or written words to convey information or express thoughts and feelings.

Organizational Communication

The process by which individuals within an organization exchange information, ideas, and meanings through various channels and media.

Vertical Communication

The flow of information between different levels within an organization, such as from management to employees or vice versa.

Grapevine

Informal communication network within an organization that is used for the sharing of rumors and unofficial information.