Hi there!
Kind Note:
I understood your question as 'What is the measure of x'. If it is the correct question, please look below for the solution. However, if the question I am saying is incorrect, then please type your 'correct question' in the comments. Thank you!
Solution:
We know that:
- Sum of all 3 angles = 180°
Work:
Adding like terms on the LHS:
Subtracting 141 both sides to isolate the x:
- => 141 - 141 + x = 180 - 141
- => x = 180 - 141
Subtracting the RHS:
Hence, the value of x is 39.
Hoped this helped.