Solve the System $\left\{ \begin{array} { l } 9 x - y = 7 \\8 x + 9 y = - 9\end{array} \right.$

question 18

Multiple Choice

Solve the system $\left\{ \begin{array} { l } 9 x - y = 7 \\8 x + 9 y = - 9\end{array} \right.$ by Cramer s rule. Write the determinant $D _ { x }$ .

• A) \(\mid \begin{array} { c c }
• 9 & - 1 \\
• 8 & 9
• \end{array}\)
• B) \(\left| \begin{array} { c c }
• 7 & - 1 \\
• - 9 & 9
• \end{array} \right|\)
• C) \(\begin{array} { c c }
• 9 & 7 \\
• 8 & - 9
• \end{array}\)
• D) \(\left| \begin{array} { c c }
• - 7 & - 1 \\
• 9 & 9
• \end{array} \right|\)

Distinguish between different types of contracts and their voidability by minors.

Analyze the impact of emancipation on a minor's contractual rights and obligations.

Assess the implications of misrepresentation of age in contract disaffirmation.

Evaluate the legal consequences of contracts aimed at evading creditors.

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