Answer:
x=20°
Step-by-step explanation:
If BE bisects ABD, it means that ABE and EBD have the same amplitude. Now, since ABC are in a straight line, the three angles sum up to 180.
[tex](2x+10)+(2x+10)+(3x+20) = 180\\7x +40=180\\7x = 140 \rightarrow x=20[/tex]
