Answer:
m∠1= 120
Step-by-step explanation:
5x+20 = 3x+80
subtract 3 from 5x and 3x to cancel out 3x
2x+20=80
subtract 20 from 20 and 80 to get 2x isolated
2x=40
divide each side by 2 to get x=20
Now plug in 20 for x in angle 1:
5(20)+20= 120
I hope this helps!
