Use Matrices to Solve the System of Equations (If Possible) $$\left\{ \begin{array} { l } 2 x + 6 y = 10 \\2 x + 3 y = 7\end{array} \right.$$

Multiple Choice

Use matrices to solve the system of equations (if possible) .Use Gaussian elimination with back-substitution or Gauss-Jordan elimination. $$\left\{ \begin{array} { l } 2 x + 6 y = 10 \\2 x + 3 y = 7\end{array} \right.$$

A) (10, 1)
B) (2, 1)
C) (2, -6)
D) (-2, 1)
E) (2, -1)