Since CE bisects BED then < BEC = <CED = 4x + 1
Add them all together.
<AEB + <BEX + <CED = 180
11x - 12 + 4x + 1 + 4x + 1 = 180
Collect the left terms on the left.
19x - 10 = 180 Add 10 to both sides.
19x = 180 + 10
19x = 190 Divide by 19
x = 190/19
x = 10
That is not the answer. The answer is
4x + 1
4*10 + 1
40 + 1
BEC = 41 <<<<<=====
