Simplify: 2x−1y\frac{2}{x} - \frac{1}{y}x2−y1.
2y−xxy\frac{2y - x}{xy}xy2y−x
1x−y\frac{1}{x-y}x−y1
y−2xxy\frac{y - 2x}{xy}xyy−2x
2−1x−y\frac{2-1}{x-y}x−y2−1