Why did president franklin d. roosevelt establish social security?
to end the great depression
to provide economic security .
to gain approval of the new deal
to protect the free market system

Answer :

President Franklin D.Roosevelt establish Social Security ...

B. to provide economic security.

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.