I think the answer is 11 - 6√3.
Answer:
x = 19
Step-by-step explanation:
123°+3x = 180°
3x = 180°-123°
3x = 57
x = 57/3
The reason why we use 123° + 3x = 180° because both are adjacent angles. Adjacent angles add up to 180°
x = 1/2
hope it helps
have a nice day
