Mathematics, 25.07.2019 22:30, mikelback419
Use the matrix method to solve the system of equations 2x + 4y = 8 and 6x + 3y = -3. the resulting matrix is: 1 0 -2 0 1 3 1 0 2 0 1 3 0 1 -2 1 0 3
Answers: 1
![\left[\begin{array}{cc}2&4\\6&3\end{array}\right] \left[\begin{array}{c}x\\y\end{array}\right] = \left[\begin{array}{c}8\\-3\end{array}\right]](/tpl/images/0132/7147/32918.png)
![ \left[\begin{array}{c}x\\y\end{array}\right] = \left[\begin{array}{cc}2&4\\6&3\end{array}\right] ^{-1} \left[\begin{array}{c}8\\-3\end{array}\right] \\= \left[\begin{array}{cc}-3&4\\6&-2\end{array}\right] \left[\begin{array}{c}8\\-3\end{array}\right] \dfrac{1}{18}\\= \left[\begin{array}{c}2\\-3\end{array}\right]](/tpl/images/0132/7147/c03aa.png)
![\left[\begin{array}{c}2\\-3\end{array}\right]](/tpl/images/0132/7147/55f8f.png)
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Use the matrix method to solve the system of equations 2x + 4y = 8 and 6x + 3y = -3. the resulting m...
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