What is the measure of the x angle

Answer:
X = 139°
Step-by-step explanation:
Angle MON is 41° as given in the figure
Now we know that angle MON and angle MOL lie on a straight line (Lon)
When two angles lie on a line they are called a linear pair and add up to 180° because they form a straight angle
So we can infer,
41 + x = 180 (their sum is 180)
So x = 180-41
= 139°