7. Systems of Equations & Matrices

In Exercises 5 - 8, find values for the variables so that the matrices in each exercise are equal. $\begin{bmatrix}x \\4\end{bmatrix}=\begin{bmatrix}6 \\y\end{bmatrix}$

In Exercises 5 - 8, find values for the variables so that the matrices in each exercise are equal. $\begin{bmatrix}x & 2y \\z & 9\end{bmatrix}=\begin{bmatrix}4 & 12 \\3 & 9\end{bmatrix}$

In Exercises 9 - 16, find the following matrices: a. A + B

In Exercises 9 - 16, find the following matrices: c. - 4A

In Exercises 9 - 16, find the following matrices: a. A + B

In Exercises 9 - 16, find the following matrices: b. A - B

In Exercises 9 - 16, find the following matrices: c. - 4A

In Exercises 9 - 16, find the following matrices: d. - 3A + 2B

In Exercises 9 - 16, find the following matrices: b. A - B

In Exercises 9 - 16, find the following matrices: b. A - B

In Exercises 9 - 16, find the following matrices: c. - 4A

In Exercises 9 - 16, find the following matrices: d. - 3A + 2B

In Exercises 9 - 16, find the following matrices: d. - 3A + 2B

In Exercises 9 - 16, find the following matrices: b. A - B

In Exercises 9 - 16, find the following matrices: a. A + B