The two other angles at A equal (61+31)/2 = 46
Angle x + one of these = straight line = 180
x + 46 = 180
x = 134 o
it looks like the two answers are correct!
but ill do it anyway
basically those intersecting lines make equal angles, so dah=bac
and we have x=(124+144)/2
x=268/2
x=134