The angle corresponding to $x^{\circ }$ is equal to the angle corresponding to $33^{\circ }$.

The angle alternate interior to the top-left interior angle is equal to the bottom-right interior angle.

The angle vertically opposite to $x^{\circ }$ is supplementary to the angle vertically opposite to $33^{\circ }$.

The sum of $x^{\circ }$ and $33^{\circ }$ is $180^{\circ }$.