In triangle $ABC,$ $AC = BC = 7.$  Let $D$ be a point on $\overline{AB}$ so that $AD = 8$ and $CD = 3.$  Find $BD.$
Question:
In triangle $ABC,$ $AC = BC = 7.$  Let $D$ be a point on $\overline{AB}$ so that $AD = 8$ and $CD = 3.$  Find $BD.$
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In triangle $ABC,$ $AC = BC = 7.$  Let $D$ be a point on $\overline{AB}$ so that $AD = 8$ and $CD = 3.$  Find $BD.$
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