The answer is: 12.8 F
The solution: -10.6+14.2+11-1.8
Answer:

Step-by-step explanation:
First, distribute the -2 to the rest of the parenthesis, following PEMDAS.

Then, add -6a to both sides.

Now, you can divide both sides by 2 to isolate b.

Divide to simplify.

Answer: 91 degrees
Step-by-step explanation:
you see 89, angle 2 is just a little bit more bigger than 89 so yeah