Answer:
The government wanted to keep the number of slave and free states equal in order to maintain a balance of power between the Northern and Southern states. At the time, there was a great deal of tension between the North and South over the issue of slavery, and many people feared that if one side had too much political power, it could lead to unrest and potentially even a civil war. By keeping the number of slave and free states equal, the government hoped to prevent one side from gaining too much power and potentially destabilizing the country. This was a delicate balance, however, and it ultimately proved to be unsustainable, as the tensions between the North and South continued to escalate in the years leading up to the Civil War.