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18 August, 16:43

Find the value of 21 - 18 3 2. 2 9 18 User: Simplify 9 - {x - (7 + x) }.

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  1. 18 August, 17:12
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    The value of 21 - 18 is 3.

    9 - {x - (7 + x) }

    9 - {x - 7 - x}

    9 - x + 7 + x

    9 + 7 - x + x

    16
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