Answer:
x = 141°
Step-by-step explanation:
The sum of all the seven angles together would be equivalent to 900°, so I took all the numbers and added it together, receiving 759. I took 759 and subtracted it from 900°, receiving 141°. So the x angle is equivalent to 141°.
Because all heptagons are equivalent to 900°, that is how I knew what the sum of all the angles would be equivalent to.
