Maybe
The "Border States" were slave states.
The two slave states from which a slave could escape directly across the Ohio River into a free state are Kentucky and West Virginia. Kentucky is located to the south of the Ohio River, while West Virginia, which was part of Virginia during the antebellum period, lies to the east. Both states provided routes for escaped slaves seeking freedom in Ohio, which was a free state.
slave states
15 slave states and 19 free states during the American Civil War
So the balance of slave to free states were equal in congress
As more of the Louisiana territory became states, the issue of slavery grew. For example, if a state wanted to enter the Union as a free state, there had to be a slave state to keep the # of slave and free states equal.
West Virginia
Yes but its by votes. Or so they can make the slave states and free states equal by number like Missouri
they made an agreement. there was acertian degrees to slave states and free states. the nourth is the free states and the south is the slave states.
18 states were free states, 15 states were slave states 33 states overall
Missouri was a slave state. Maryland and Kentucky were slave states.
In America there was 11 free states and 11 slave states, before the compromise.