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13 May, 01:02

Como se hace - 8n+7=31

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  1. 13 May, 02:28
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    -8n+7=31

    -8n+7-7=31-7

    -8n=31-7

    -8n=24

    -8n: (-8) = 24: (-8)

    n=24: (-8)

    n=-24:8

    n=-3
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