The value of (2x + y) is

180 165 210 195

195

We know that, angle made on straight line =180° Thus, ⇒ (2x + 15)° + (y - 30)° = 180° ⇒ (2x + y)° - 15° = 180° ⇒ (2x + y)° = 180° + 15° = 195°