Answer
Find $A^{-1}$ and then
multiply $A^{-1}$ and $B$ to find $X$.
Work Step by Step
The matrix form of a linear system of equations is $AX=B$,
in which $A$ is the coefficient matrix and
$B$ is the constant matrix.
If $AX=B$ has a unique solution, then $X=A^{-1}B$.
So, to solve a linear system of equations,
find $A^{-1}$, and then
multiply $A^{-1}$ and $B$ to find $X$.