Final answer:
Ms. Stockton started with 35 apples before she bought more. This is determined through the equation x + 39 = 74, where x represents the initial number of apples.
Step-by-step explanation:
Let's suppose the number of apples Ms. Stockton had initially to be x. After going to the store and buying additional 39 apples (indicated by the '+39' in the problem), she ended up with 74 apples (which is the final inventory of apples).
Translating this scenario into a number sentence, we get the equation x + 39 = 74.
To find out how many apples Ms. Stockton had at the start (x), we can rearrange our equation by subtracting 39 from both sides of the equation to solve for x (the number of initial apples).
So, x = 74 - 39. After doing the subtraction, we find that x = 35.
Therefore, Ms. Stockton started with 35 apples.
Learn more about Subtraction Problems