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4 December, 15:55

If the mean of 2 3 x and 5 is 4, find x

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  1. 4 December, 16:08
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    the missing number is 6

    Step-by-step explanation:

    To find the mean, add up all the numbers and divide by the number of numbers

    (2+3+x+5) / 4 = 4

    Combine like terms

    (10+x) / 4 = 4

    Multiply each side by 4

    10+x = 16

    Subtract 10 from each side

    x = 6
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