Step-by-step explanation:
Checks and balances are to ensure none of the branches gain too much power. Each branch has their own responsibilities and powers against each other to prevent any branch from having too much power. For example, the legislative branch may propose a law and receive a majority vote to pass it, but the executive branch (the president) can veto the law if it is unagreeable. Each branch has the power to disassemble anything another branch tries to do that seems unconstitutional, corrupt, or unagreeable. With these powers, they can check on each other to make sure all of their powers are balanced.