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7 October, 18:35

Twice a number, increased by one , is between negative three and seven. find all the numbers.

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  1. 7 October, 19:22
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    -3 < 2x + 1 < 7

    -3 - 1 < 2x + 1 - 1 < 7 - 1

    -4 < 2x < 6

    -4/2 < 2/2x < 6/2

    -2 < x < 3 ... this means ur numbers are between - 2 and 3 ... so ur numbers are - 1,0,2 <==
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