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3 March, 03:03

If DE = 3x, EF = 2x, and DF = 10, what is DE?

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  1. 3 March, 05:43
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    Step-by-step explanation:

    As we know that

    DF=DE+EF

    by putting values

    10=3x+2x

    10=5x

    10/5=x

    2=x

    now as

    DE=3x

    by substituting value of x

    DE=3 (2)

    DE=6
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