Not sure where A fits into this picture.
But if BD bisects angle EBC, then the two halves are equal, right? So,
7x-8 = 5x+10
Find x, and then you can figure the angle.
BA and BC are opposite rays. BD bisects EBC. If measure of EBD=7x-8 and measure of DBC=5x+10, find measure of EBD
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