Random spawn of X-axis

Hi there's.!!! In my project I tried different way to spawn a actor so the actor can fall down, but how can I spawn an actor randomly only in X-axis to fall down ??? Thanks in advance

On trigger event eg every X seconds:

System create object at int(random(Z,(LayoutWidth-Z)),Y)

Where Y is the Y "height" at which you want it to spawn.

Z is half the width in pixels of the object you want to create to ensure the spawned object always fits on screen.

Sorry I miss the Y value for height, I will tried the code u gave me in the night, thanks a lot