Answer:
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 :)
