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23 September, 06:05

What must the length of segment ad be for the quadrilateral to be a parallelogram if ad=3x+7 and cb=5x-9

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  1. 23 September, 06:31
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    You just basically combined them.

    3x+7=5x-9

    -3x - 3x

    7=2x-9

    x=8
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