How would the formation of states in the michigan, arkansas, and florida territories probably affect the balance of power that the missouri compromise tried to maintain?

The balance of power between slave states and free states would have been upset. If representative of slave or free states would have been in the Senate and the House of Representatives because of newly formed states, their agenda would have been superior to the other agenda every time.

They made a checks and balance system to equal power within the branches. the "check" meant that one branch would watch one branch and "balance" them if they were too powerful. if you want more info on this, i would just google checks and balance system.