Answer:
Let's call the original number of dollar bills Mother had "d". Each child received d/5 + 3 dollars.
Since each child received $14, we have:
d/5 + 3 = 14
Multiplying both sides by 5, we get:
d + 15 = 70
Subtracting 15 from both sides, we get:
d = 55
So, Mother had 55 dollar bills in her wallet.