Answer:
When you say, J is between H and K, I am guessing you mean J is on the straight line joining H and K.
If this is the case it is a simple matter of adding the two segments: HJ and JK to get the overall length: HK.
HJ + JK = HK
3(X + 2) +(3X - 4) = 44
3X + 6 + 3X - 4 = 44
6X + 2 = 44
6X = 42
X = 7.
Explanation:
hope it helps you friend ☺️