Complex sentence: Snyder had also served an earlier term from 1973 to 1977, under the former commission form of city government, but had been defeated for reelection under the mayor-council charter in 1977.
Split into simpler sentences: Snyder had also served an earlier term from 1973 to 1977, under the former commission form of city government. He was defeated for reelection under the mayor-council charter in 1977.