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20 March, 19:55

A 21 inch board is to be cut into three pieces so that the second piece is twice as long as the first piece and the third piece is 4 times as long as the first piece if x represents the length of the first piece find the lengths of all three pieces what is the length of the first piece?

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  1. 20 March, 23:24
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    X + 2x + 4x = 21

    7x = 21

    x = 3
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