Vector Algebra

The solution of $$ydx-xdy+\log {x}dx=0$$ is
The solution of $$ydx-xdy+\log {x}dx=0$$ is
The solution of $$ydx-xdy+\log {x}dx=0$$ is
The solution of $$ydx-xdy+\log {x}dx=0$$ is
The solution of $$ydx-xdy+\log {x}dx=0$$ is