Use Inverses to Solve Matrix Equations
Write the Linear System

question 110

Multiple Choice

Use Inverses to Solve Matrix Equations
Write the linear system as a matrix equation in the form AX = B, where A is the coefficient matrix and B is the
constant matrix.
- $\left[ \begin{array} { r r } 7 & 3 \\ 4 & 13 \end{array} \right] \left[ \begin{array} { l } x \\ y \end{array} \right] = \left[ \begin{array} { l } 11 \\ 19 \end{array} \right]$

• A) \(7 x + 3 y = 11\)
• \(4 x + 13 y = 19\)
• B) \(7 x + 3 y = - 11\)
• \(4 x + 13 y = - 19\)
• C) \(3 x + 7 y = 11\)
• \(4 x + 13 y = 19\)
• D) \(7 x + 3 y = 11\)
• \(13 x + 4 y = 19\)

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