Hey! This is my first question! The equation is relatively simple but something makes me not understand it. Your help would be greatly appreciated. :)

Answer:
101 = LHK
Step-by-step explanation:
GHK = GHL + LHK
GHK is a straight line so it equals 180
180 = 79+ LHK
Subtract 79 from each side
180-79 = 79-79+ LHK
101 = LHK