Solve this and Include work, I need a refresher I forgot how to do this.

X = 20

Step-by-step explanation:

This is an example of a supplementary angle.

A supplementary angle adds up to 180 degrees.

Therefore, in order to find x in this situation you will have to put both angles (added) equal to 180, like this:

5x + 80 = 180

Now, it is simple algebra from here. Solve for x:

5x = 100

x = 20

In conclusion, x is equal to 20.

I hope this helps!!

If you have any questions let me know!

- Kay :)

answer is b

step-by-step explanation:

its line 2 i just added the rest or else it wouldn't let me answer