Answer is 139 degree
Angle 3 and 5 are the same.
Angle 3=9x+14
Angle 5=14x-1
9x+14=14x-1
9x-14x= -1-14
-5x= -15 multiply by -1
5x=15
x=15/5
x=3
Angle 3+Angle 8=180 degree
Angle 3=9x+14
Angle 3= 9•3+14
Angle 3=27+14
Angle 3=41 degree
41+ Angle 8=180
Angle 8= 180-41
Angle 8.=139 degree
Good luck
