Answer
$x=2, y=-3$
Work Step by Step
Similar to adding and subtracting, the matrices given each have a corresponding term. The top left with the top left, the top right with the top right, and so on.
The scalar of $3$ on the outside must be distributed to each term within the matrix.
After distributing to each $x$ and $y$ and pairing each to the corresponding part, it's clear that we have two of each:
$3x=6$
$x=2$
$3y=-9$
$y=-3$
This $x$ value and $y$ value are your solutions.
