Answer:
X = 30 degrees
Explanation:
Angle BAC = 60 degrees because of equilateral triangle. Therefore angle BAD = 120 degrees because of angles on a straight line
Angle CBA = 60 degrees, therefore angle DBA = 30 degrees because line DB and BC meet at 90 degrees.
Now do 180 - (30 + 120) = 30. X = 30
