Complex sentence: From 1978 to 1980, Mr. Solomon served as Deputy Mayor of Economic Policy and Development in New York City under Mayor Edward Koch, and in 1980, he served as Counselor to the United States Treasury within the Carter Administration.
Split into simpler sentences: From 1978 to 1980, Mr. Solomon served as Deputy Mayor of Economic Policy and Development in New York City under Mayor Edward Koch. In 1980, he served as Counselor to the United States Treasury within the Carter Administration.