What is the proper way to land at KLAS on runway 7L or 7R? I was flying a 787. ATC had me on both approaches at 8700 and 9100ft respectively and then descending down to 4200ft right before landing. I was told to start the descent at about 20 miles out. I was on visual approach and told michell to perform a visual landing once I turned onto a heading of 105. Thanks, Jordan