A Sunni Muslim, he was a legislator representing the Beqaa Valley from 1957–1960 and 1964–1968.

In July 1980, President Elias Sarkis asked el-Solh to form a government, but he was unable to do so and resigned in October.

He was faced with extensive objection by the Syrians and was told to leave Lebanon.

He spent his last days in Paris, where he died of a heart attack, aged 80.

[2] The mansion Takieddin el-Solh and Fadwa Barazi El-Solh had inhabited was the subject of an installation displaying photographs, newspapers, films, texts and drawings in the exhibition of Gregory Buchakjian, Abandoned Dwellings of Beirut, that took place at the Villa Empain in Brussels, 2019.