Answer:
16.6
Explanation:
∵BD bisects ABC
∴ABD = DBC
DBC = 1/2 ABC
8x-7 = 0.5(6x + 3)
16x-14 = 6x +3
10x = 17
x = 1.7
ABD = DBC = 8*1.7 + 7 = 16..6°
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