Simplify the following text for a Grade 13 native English-speaking person.
Original: Inner Mongolia borders , from east to west , the provinces of Heilongjiang , Jilin , Liaoning , Hebei , Shanxi , Shaanxi , Ningxia Hui Autonomous Region , and Gansu , while to the north it borders the Republic of Mongolia and Russia .
Simplified: Inner Mongolia borders , from east to west , the provinces of Heilongjiang , Jilin , Liaoning , Hebei , Shanxi , Shaanxi , Ningxia Hui Autonomous Region , and Gansu , while to the north it borders Mongolia and Russia .