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26 September, 08:10

What is the solution of 3|2x + 7| - 9 <0?

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  1. 26 September, 08:22
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    -5 < x < - 2.

    Step-by-step explanation:

    3|2x + 7| - 9 <0

    3|2x + 7| < 9 Divide through by 3:

    |2x + 7| < 3

    2x + 7 < 3

    2x < - 4

    x < - 2.

    Also 2x + 7 > - 3

    2x > - 10

    x > - 5.
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