Use Cramer's Rule to Solve the System of Equations $$\begin{array} { l } x - y + z = 2 \\x + y + z = 8 \\x + y - z = 0\end{array}$$

question 137

Multiple Choice

Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.
- $$\begin{array} { l } x - y + z = 2 \\x + y + z = 8 \\x + y - z = 0\end{array}$$

• A) \(\{ ( 1,4,3 ) \}\)
• B) \(\{ ( 4,1,3 ) \}\)
• C) Cramer's rule does not apply since \(D = 0\); \(\varnothing\)
• D) \(\{ ( 1,3,4 ) \}\)

Understand the concept of the Fisher effect and its implications for real interest rates and inflation.

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