Answer:
x = 14
Step-by-step explanation:
arc JL = 180° ( JL is a diameter ), then
arc KL = 180° - 31° = 149° , so
9x + 23 = 149 ( subtract 23 from both sides )
9x = 126 ( divide both sides by 9 )
X=14
360-31-31=298
298/2=149
149-23=126
126/9=14
