Solve the System of Linear Equations $\left\{ \begin{array} { l } 4 x + 4 y = 3 \\8 x - 20 y = - 9\end{array} \right.$

question 124

Multiple Choice

Solve the system of linear equations $\left\{ \begin{array} { l } 4 x + 4 y = 3 \\8 x - 20 y = - 9\end{array} \right.$ using an inverse matrix.

• A) \(\left[ \begin{array} { l }
• x \\
• y
• \end{array} \right] = \left[ \begin{array} { l }
• \frac { 3 } { 14 } \\
• \frac { 15 } { 28 }
• \end{array} \right]\)
• B) \(\left[ \begin{array} { l }
• x \\
• y
• \end{array} \right] = \left[ \begin{array} { l }
• \frac { 9 } { 28 } \\
• \frac { 12 } { 7 }
• \end{array} \right]\)
• C) \(\left[ \begin{array} { l }
• x \\
• y
• \end{array} \right] = \left[ \begin{array} { c }
• \frac { 9 } { 28 } \\
• \frac { - 3 } { 14 }
• \end{array} \right]\)
• D) \(\left[ \begin{array} { l }
• x \\
• y
• \end{array} \right] = \left[ \begin{array} { c }
• \frac { 9 } { 7 } \\
• \frac { 15 } { 28 }
• \end{array} \right]\)
• E) \(\left[ \begin{array} { l }
• x \\
• y
• \end{array} \right] = \left[ \begin{array} { c }
• \frac { - 9 } { 7 } \\
• \frac { - 3 } { 14 }
• \end{array} \right]\)

Analyze the effect of casualty events on tax reporting, including the election of the tax year for claiming a loss.

Understand the general principles for itemizing deductions on federal income tax returns.

Recognize the specific conditions and limits for deducting medical and dental expenses, including the AGI floor.

Identify and calculate deductible interest on qualified residence and home equity indebtedness.

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