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12 September, 11:56

If (x+3) + 3 (x-1) = 20, what is the value of x

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  1. 12 September, 12:50
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    1 (x + 3) + 3 (x - 1) = 20

    1 (x) + 1 (3) + 3 (x) - 3 (1) = 20

    x + 3 + 3x - 3 = 20

    x + 3x + 3 - 3 = 20

    4x = 20

    4 4

    x = 5
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