please answer oevoneofnvo
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Answer:
∠ABC = 8°
Step-by-step explanation:
First, let us set up the equation.
3x + 4 = 20 - x
3x = 16 - x
4x = 16
x = 4
So that means ∠ABD & ∠DBC is 4° each.
4 + 4 = 8
Therefore, the answer is 8°.
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