Question Find the value of $z$ given a system of linear equations involving $2 \times 2$ matrices.

Studdy Solution
Since we are only asked to find $z$, we can stop here and state the value of $z$.
$$z = x + 3$$
However, we are not given the value of $x$, and it is not possible to determine a numerical value for $z$ without additional information about $x$. Therefore, $z$ is expressed in terms of $x$.