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David Morabito · Answer 1 · 2023-12-23T10:54:16+0000

Answer:

6

Explanation:

Due to the segment addition postulate, XY + YZ = XZ.

By substituting the values in, we get that
(3k-2)+(7k+4)=4k+38

Simplifying gives us that
10k+2=4k+38

6k=36

k=6