What was the purpose of the Missouri Compromise?

The reason for the Missouri Compromise was to keep a harmony between the quantity of slave states and the quantity of free states in the Union. It permitted Missouri to enter as a slave state simultaneously Maine entered as a free state, in this way keeping an equilibrium in quantities of free and slave states.

Explanation:

The purpose of the Missouri Compromise was to evenly divide (split) the states into free states and slave states.

Explanation:

The purpose of the Missouri Compromise was to evenly divide (split) the states into free states and slave states.  

answer; i believe its called ; checks   and balances;