Answer:
x = 69
Step-by-step explanation:
Sum of angles around a point = 360
i.e,
=> 168 + 123 + x = 360
=> 291 + x = 360
=> x = 360 - 291
=> x = 69
Basic fact:
all the angles in this graph will add up to 360 degrees
168+123
=291
360-291=69
x=69
