Use Matrices to Solve the System of Equations (If Possible) $\left\{ \begin{aligned}- 2 x - y - 7 z & = - 27 \\x - 5 y + z & = - 24 \\- 2 x + 4 y - 7 z & = - 2\end{aligned} \right.$

question 20

Multiple Choice

Use matrices to solve the system of equations (if possible) . Use Gaussian elimination with back-substitution or Gauss-Jordan elimination. $\left\{ \begin{aligned}- 2 x - y - 7 z & = - 27 \\x - 5 y + z & = - 24 \\- 2 x + 4 y - 7 z & = - 2\end{aligned} \right.$

• A)x = 3, y = -5, z = 4
• B)x = -3, y = -5, z = 4
• C)x = -3, y = 5, z = 4
• D)x = 5, y = 3, z = -4
• E)no solution

---

Definitions:

Unearned Management Fees

Income received by a business for services that have not yet been rendered, considered a liability until the service is provided.

Management Fees Revenue

Income earned by a company for providing managerial services, which can include advisory, administrative, or general management services.

End-of-Period Adjustment

Adjustments made to the financial records at the end of an accounting period to ensure they accurately reflect the company's financial status.

Prepaid Expense

Expenditures paid in advance for goods or services to be received in the future, treated as an asset on the balance sheet until used.