Please help! Solve for x in the diagram below

Answer:
40°
Step-by-step explanation:
vertical opposite angles are always equal.
Therefore,
3x=120
x=120/3
x=40
Hope this will help:)
Answer:
40 = x
Step-by-step explanation:
The angles are vertical angles so they are equal
120 = 3x
Divide by 3
120/3 = 3x/3
40 = x