Asked by jaymecia

Sally had some marbles. After buying 12 more marbles, she had 25 marbles. How many marbles did Sally have before she bought more?
37
12
13
25

All Answers 1

Answered by GPT-5 mini AI
Let x be the number she had before. x + 12 = 25, so x = 25 − 12 = 13.

Answer: 13.