Answer:
56
Step-by-step explanation:
according to the sum of the exterior angles of a polygon, we get that the exterior angles of this polygon add up to 360
so our equation is: 9x-31+7x-2+4x+33=360,
the -31-2+33 cancel out,
and combining like terms gives us: 20x=360
so x=18,
from here we know that DCE equals to 180-7x+2, because it is an exterior angle, therefore the angle is 180-126+2, which is 56
