Use Cramer's Rule to Solve the System $$\begin{array} { c } 4 x - 6 y - 3 z = - 53 \\- 5 x + 6 y + 7 z = 69 \\8 x - 8 y + 7 z = - 5\end{array}$$

question 84

Multiple Choice

Use Cramer's rule to solve the system.
- $$\begin{array} { c } 4 x - 6 y - 3 z = - 53 \\- 5 x + 6 y + 7 z = 69 \\8 x - 8 y + 7 z = - 5\end{array}$$

• A) \(\{ ( 4,9,5 ) \}\)
• B) \(\{ ( 9,5,9 ) \}\)
• C) \(\{ ( 4 , - 9 , - 5 ) \}\)
• D) \(\{ ( 5,7,5 ) \}\)

---

Definitions:

Global Variable

A variable that is defined in the global scope, accessible and modifiable by any part of the code, across different functions and files.

Extern

The extern keyword in C and C++ is used to declare a variable or function in another file, indicating that its definition will be found elsewhere.

Source Code

The original code written by a programmer in a high-level programming language before it is compiled into machine code.

Declaration Statement

A statement in programming that specifies the type and possibly the initial value of one or more variables or constants.