Complex sentence: Both albums received a platinum certification by the RIAA in the United States and also became successful in countries outside of Latin America and the United States, such as Finland and Saudi Arabia, and they sold over twelve million copies combined.
Split into simpler sentences: Both albums received a platinum certification by the RIAA in the United States. The two albums also became successful in countries outside of Latin America and the United States, such as Finland and Saudi Arabia, and they sold over twelve million copies combined.