Solve the System of Linear Equations Using Matrices $$\left\{ \begin{array} { r } - x + y = 3 \\- 3 x + y = 7\end{array} \right.$$

question 97

Multiple Choice

Solve the system of linear equations using matrices.
- $$\left\{ \begin{array} { r } - x + y = 3 \\- 3 x + y = 7\end{array} \right.$$

• A) \(( 1 , - 2 )\)
• B) \(( 2 , - 1 )\)
• C) \(( - 2,1 )\)
• D) \(\varnothing\)

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