Real-world situation:
Jenny has $60 to spend at the comic book store and an old action figure that she wants to sell. She bought a comic book that costs $20 and sold the action figure to the same comic book store for $80.
How much money does she have after she leaves the comic book store?
Work to simplify the expression:
We have to subtract to Jenny's initial amount the cost of the comic book ($20) and add the money received for the action figure ($80).
Mathematically speaking:
60 - 20+ 80 = 120
Explanation of the answer:
Jenny has $120 after she leaves the comic book store.