I think its a. but i could be wrong
Since the two measures are vertical angles, you want to set them equal to each other :
6x+7=8x-17
-6x -6x
——————
7=2x-17
+17 +17
———————
24= 2x
X= 12
———
The answer is 12.
Answer: dangerous
Step-by-step explanation: i got it right bye .
Discrimination 100 the real answer is that and it will not make since at dirt but it is have a good day