Answer:
x = 8
Step-by-step explanation:
The value of x can be found by equating the associated angle with its vertical angle. That vertical angle is the difference between the one marked 18° and the right angle.
∠ZJW = ∠HJZ -∠WJZ = 90° -18° = 72°
∠GJL ≅ ∠ZJW
(9x)° = 72°
x = 72/9 = 8
