Long press and hold the apps you want to move. Now slide the app toward thr edge of the screen to move to the next screen. Do this for all apps to place on the two desktop pages you want.
Now depending on the phone you have, you should be able to "pinch jester" on a desktop screen to get a collective view of them all. There should either be a trash can icon on the individual pages or you may have to long press on the page and drag to a trash can icon.