Because it's a right angle, you can determine that Angle ABC and Angle CBD=90 degrees. Therefore:
(2x+1)+33=90
2x+1=57
2x=56
x=28
Due to one of the postulates, or whatever (haven't done geometry in 2 yrs, forgive me), angles GJH and FJI are equal to each other. Therefore:
5x+12=6x-10
-x=-22
x=22
