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12 June, 16:23

what is the length of line segment AC if line segment ab is x+4 and line segment bc 3x-8 and line segment ca is x

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  1. 12 June, 18:32
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    Is this it? We seem to need an additional fact. Let's assume B is between A and C so AC=AB+BC.

    x = x + 4 + 3x - 8

    x = 4x - 4

    4 = 3x

    x = 4/3

    Check:

    4/3 + 4 + 3 (4/3) - 8 = 16/3 - 4 = 4/3, good

    Since AC=x our answer is

    Answer: 4/3
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