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30 October, 02:23

Find the value of 3x + 2 when 7 + x = 5

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  1. 30 October, 02:34
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    Work out the second equation first.

    7 + x = 5

    -7 - 7

    x = - 2

    Plug in x.

    3 (-2) + 2=?

    -6+2=4
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