math

Ray BD bisects ∠ABC so that m∠DBC = x + 8 and
m∠ABD = 2x − 15. What is x?

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  1. Ray BD bisects ∠ABC
    That means the two angles formed are congruent.
    That means their measures are equal. So,
    x+8 = 2x-15
    Now just find x.

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    oobleck
  2. "bisect" means to cut into two equal parts, so

    2x-15 = x+8

    just solve this trivial equation for x

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    Reiny
  3. since everyone else won't answer it, I will. x = 13

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  4. thank. you somesh the answer was 13

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