separation of powers is the division of power in order to create balance within a system.
it works in that each “branch” can check each other (aka checks and balances) and overrule decision, overall keep each other in line so that no one branch has more power.
it was created so that no one part of government would have more power over another.
an example is the 3 branches of government. legislative, judicial, and executive. they are able to use checks and balances to keep each other in line and no one has more power over another.