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7 October, 05:02

If ab = 5x + 3 and Bc = 7x - 9 what is the value of Ac

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  1. 7 October, 05:30
    0
    12x - 6

    Step-by-step explanation:

    Assuming these are segments on the same line with B between A and C, the segment addition postulate says ...

    ... AC = AB + BC

    ... AC = (5x + 3) + (7x - 9)

    ... AC = x (5+7) + (3-9)

    ... AC = 12x - 6
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