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29 November, 17:17

Given line ac with line ab=2x-4, bc=4x and ac=2x+12 find ac

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  1. 29 November, 18:22
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    The answer to your question is: AC = 20

    Step-by-step explanation:

    Data

    AB = 2x - 4

    BC = 4x

    AC = 2x + 12

    AC = ?

    AB + BC = AC

    2x - 4 + 4x = 2x + 12

    6x - 4 = 2x + 12

    6x - 2x = 12 + 4

    4x = 16

    x = 16/4

    x = 4

    AB = 2 (4) - 4 = 8 - 4 = 4

    BC = 4 (4) = 16

    AC = 2 (4) + 12 = 8 + 12 = 20

    4 + 16 = 20

    20 = 20
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