Use Matrices to Solve the System of Equations $\left\{ \begin{array} { l } 3 x + 4 y = 2 \\9 x - 2 y = 20\end{array} \right.$

question 85

Multiple Choice

Use matrices to solve the system of equations. $\left\{ \begin{array} { l } 3 x + 4 y = 2 \\9 x - 2 y = 20\end{array} \right.$

• A) (-2,1)
• B) (2,-1)
• C) (1,-2)
• D) no solution
• E) infinitely many solutions

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