Answer:
x is 9; angle measure is 27
Step-by-step explanation:
Rules used:
Angles on a straight line add up to 180.
Angles at a point add up to 360.
180 - 27 = 153
That is the magnitude for the angle between the 3x and 27.
180 - (45 + 27) = 108
That is the magnitude of the angle between 27 and 45.
360 - (153 + 27 + 108 + 45)
= 360 - 333
= 27
3x = 27
x = 9
