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11 June, 08:32

1) The variable x represents a value in the set (4, 6, 7, 8). Which value of x makes 2 (x-4) + 3 = 7?

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  1. 11 June, 08:56
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    x=6

    Step-by-step explanation:

    2 (x-4) + 3 = 7

    Subtract 3 from each side

    2 (x-4) + 3-3 = 7-3

    2 (x-4) = 4

    Divide each side by 2

    2 (x-4) / 2 = 4/2

    x-4 = 2

    Add 4 to each side

    x-4+4 = 2+4

    x=6
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