In the information we know that the total degree of the biggest angle on there, JKM, is 84 degrees. LKM is 44 degrees with KN bisecting it, meaning that the angles LKN and NKM must have the same degree value. Since they each make up half of angle LKM, this means they’re both half of 44 degrees, or 22 degrees each.
In order to find angle JKN, you need to subtract NKM from JKM. The angles for both of these have already been established above, which means we have the following equation
84 - 22 = JKN.
From there, it’s just simple subtraction to find the value of the angle
62 = JKN
Meaning that angle JKN is 62 degrees.
Hope this helped!