Answer:
They wanted slaves to be counted when determining legislative representation and for determining tax obligations.
Step-by-step explanation:
During the constitutional convention held in Philadelphia in 1787, a lot of issues came up between States represented. One of the main issues that were later resolved was the issue of including slaves in the population count. Two of the southern delegates James Wilson and Roger Sherman proposed a Three-Fifths Compromise where they wanted slaves to be counted when determining legislative representation and for determining tax obligations. The compromise was eventually adopted.