Question

please answer this urgently ​

Answer 1

AOB is a straight line hence its means all angles sums are equal to 180°

i.e

angle AOC +angle BOC=180°

5x+3+x-9=180°

6x-6=180°

6x=180°-6

x=174/6

x=29°

Answer 2

Thus,

x = 31

angle AOC = 158°

angle COB = 22°