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March 30, 2017

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B is the midpoint of line AC. If AB = 12x-5 and BC = 4x + 15. Find x and BC.

  • geometry - ,

    since B is the midpoint of line AC, that means AB=BC

    set AB=BC
    12x-5=4x+15

    find x. plug x into 4x+15 to find BC.

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