Difference between MotionEvent.getRawX and MotionEvent.getX

Question

I would like to know The difference between MotionEvent.getRawX and MotionEvent.getX in android as one is numeric and the other is float?Whats the need to have both of these types?

Answer 1

=>

rawX = motionEvent.getX() + touchableButton.getX() + layout3.getX() + layout2.getX();