Step-by-step explanation:
the process is shown above hope you understand.
Your answer would be x= -42
Answer:
7.039
Step-by-step explanation:
Answer:
Third option
Step-by-step explanation:
Given the following question where...

A triangle adds up to 180 degrees
50 + 120 = 170 + 10 = 180
The measurement of the third angle is 10 degrees or the third option.
Hope this helps.