Write the System of Equations as a Matrix Equation of the Form

question 114

Multiple Choice

Write the system of equations as a matrix equation of the form AX = B, where A is the coefficient matrix, X is the column matrix of variables, and B is the column matrix of constants.
- $\begin{array} { l } - 5 x - 2 y = - 7 \\3 x + 3 y = 6\end{array}$

• A) \(\left[ \begin{array} { r r } - 5 & 2 \\ 3 & - 3 \end{array} \right] \left[ \begin{array} { l } x \\ y \end{array} \right] = \left[ \begin{array} { r } - 7 \\ 6 \end{array} \right]\)
• B) \(\left[ \begin{array} { r r } - 5 & - 2 \\ 3 & 3 \end{array} \right] \left[ \begin{array} { l } x \\ y \end{array} \right] = \left[ \begin{array} { r } 7 \\ - 6 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r } - 5 & - 2 \\ 3 & 3 \end{array} \right] \left[ \begin{array} { l } x \\ y \end{array} \right] = \left[ \begin{array} { r } - 7 \\ 6 \end{array} \right]\)
• D) \(\left[ \begin{array} { r r } 5 & 2 \\ - 3 & - 3 \end{array} \right] \left[ \begin{array} { l } x \\ y \end{array} \right] = \left[ \begin{array} { r } - 7 \\ 6 \end{array} \right]\)

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