There are three supplementary angles, ∠A=67°, ∠B=2x+20°, and ∠C=x°. What is the measure of ∠B?(1 point)

2 answers

2x + 20°
gee, @stupid, surely you must have figured out this angle stuff by now!
The bot is also stupid.

67 + 2x+20 + x = 180
3x = 93
x = 31
Now you can find m∠B