Use Cramer's Rule, If Possible, to Solve the System of Linear

question 18

Multiple Choice

Use Cramer's Rule, if possible, to solve the system of linear equations.
- $$\left\{ \begin{array} { l } x + y = 7 \\6 x + 6 y = 42\end{array} \right.$$

• A) \(( 2,5 )\)
• B) \(( 0,0 )\)
• C) \(\{ ( x , y ) \mid x + y = 7 \}\)
• D) \(\varnothing\)

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