Answer:
The numbers are 47.5 and 72.5
Explanation:
Let "x" represent the larger number, then the smaller number would be equivalent to:

Larger Number + Smaller Number = 120
Therefore...

Combine like terms:

Add 25 to both sides (note we are utilizing the Addition Property of Equality which essentially states that if you add a value to one side of the equation, you must add it to the other side as well):

Divide both sides by 2 (note we are now utilizing the Division Property of Equality which essentially states that if you divide a value from one side of the equation, you must divide it from the other side as well; the same as the Addition Property of Equality, but with division instead):

Therefore...
