To solve the situation with Ben and Kyle and their fishing lures, we can set up the equations based on the information provided.
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They have a combined total of 43 fishing lures:
\( B + K = 43 \) -
Kyle has 15 more lures than Ben:
\( K = B + 15 \)
Now, let's analyze the given statements:
A: \( B + 42 = K \)
This is incorrect. It should be \( K = B + 15 \), not 42.
B: \( K + 15 = B \)
This is incorrect because it rearranges the relationship incorrectly. It should be \( K = B + 15 \).
C: \( B + 15 = K \)
This is correct. It directly reflects the relationship that Kyle has 15 more lures than Ben.
D: \( 43 - B = K \)
This is correct. You can rearrange the first equation \( K = 43 - B \).
E: \( 43 - 15 = B \)
This is incorrect. It misrepresents the relationships set up in the problem.
So, the correct statements are C and D.