help please. I will give brainliest to first answer.

Answer:
4x-20=60
Step-by-step explanation:
the angles are congruent, so setting them equal to each other would be the way to go
Answer:
x = 20°
Step-by-step explanation:
4x - 20° = 60° {being vertically opposite angles}
4x = 60° + 20°
4x = 80°
x = 80° / 4
x = 20°