Question

will pick brainliest, what is the value of X?

Answer 1

Answer:

x+x+100=180° Angles on straight line.

2x=180-100

x=80/2

x=40°

Answer 2

40

Step-by-step explanation:

since 100+X+X make a straight line/angle

therefore

$100 + 2x = 180 \\ 2x = 180 - 100 \\ 2x = 80 \\ x = \frac{80}{2} \\ x = 40$