Answer:
37
Step-by-step explanation:
Since the lines are parallel,
2x + 106 = 180
2x = 74
x = 37
x = 37°
∠ a = 2x [Corresponding angles]
106° + ∠ a = 180° [Angles on a straight line]
∴ 106° + 2x = 180°
⇒ 2x = 74°
⇒ x = 37°
