Complex sentence: He was educated in the Tasmanian state school system, studying at Mowbray Heights Primary and Brooks High School, before working as a groundsman at Scotch Oakburn College, after completing year 10 as a 16 year-old.
Split into simpler sentences: He was educated in the Tasmanian state school system, studying at Mowbray Heights Primary and Brooks High School. He then worked as a groundsman at Scotch Oakburn College after completing year 10 as a 16 year-old.