we know that angles ABC and DBE are equal (vertical angles, i believe).
if x is 6, angle ABC would be:
17(6) + 18 = 102 + 18 = 120
now, we'll have this equation:
14y - 20 = 120
14y = 140
y = 10
hope this helped! please let me know if you are still confused :)
please help
