Find the value of x
Can u please explain

Answer:
x = 11
Step-by-step explanation:
the inscribed angle CDE is half the measure of its intercepted arc CE , so
8x - 9 = [tex]\frac{1}{2}[/tex] × 158 = 79 ( add 9 to both sides )
8x = 88 ( divide both sides by 8 )
x = 11