Complex sentence: It was released on July 21,1987, by Geffen Records to massive commercial success, topping the "Billboard" 200 and eventually becoming the best-selling debut album as well as the 11th best-selling album in the United States.
Split into simpler sentences: It was released on July 21,1987, by Geffen Records to massive commercial success. It topped the "Billboard" 200 and became the best-selling debut album as well as the 11th best-selling album in the United States.