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6 July, 08:18

The average of 8,6,9,12 and 4x is x. What is the value of x

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  1. 6 July, 08:43
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    8 + 6 + 9 + 12 + 4x / 5 = x Original Problem.

    25 + 4x / 5 = x Addition.

    25 + 4x = 5x Multiply each side by 5.

    25 = x Subtract 4x from each side.

    x = 25 Switch equation around.

    Answer: x = 25
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