Question

how to solve Solving Matrix Equations please?I can not seem to know or grasp when I need add or subtract on each side.

Answer 1

To find X, we have to move the variable X to the right side, and the matrix on the right moves it to the left side.

`X=\begin{bmatrix}{8} & {-7} & \\ {1} & {9} & {} \\ {} & {} & {}\end{bmatrix}-\begin{bmatrix}{0} & {4} & {} \\ {6} & {5} & {} \\ {} & {} & {}\end{bmatrix}`

Then, we just subtract the matrices

`X=\begin{bmatrix}{8-0} & {-7-4} & {} \\ {1-6} & {9-5} & {} \\ & {} & {}\end{bmatrix}`

As you can observe, you have to subtract the same position numbers.

Hence, the answer is

`X=\begin{bmatrix}{8} & {-11} & {} \\ {-5} & {4} & {} \\ & {} & {}\end{bmatrix}`