A metade do sucessor de um numero somado com 10 resulta no seu dobro que numero e esse

A metade do sucessor de um numero somado com 10 resulta no seu dobro que numero e esse



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    Oi,

    Resoluo

    x + 1/2 + 10 = 2x

    MMC = 2

    x + 1/2 + 20/2 = 4x/2

    Eliminando os denominadores

    x + 1 + 20 = 4x
    x — 4x = — 1 — 20
    — 3x = — 21 . (-1)
    3x = 21
    x = 21/3
    x = 7

    Portanto, o nmero 7

    Espero ter ajudado e bons estudos !

  • Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
    Como no conhecemos qual o nmero o chamaremos de x, logo seu sucessor x + 1 assim temos
    (x+1)/2 + 10 = 2x tirando o mmc que dois temos que:
    x+1 + 2*10 = 2x*2
    x+1 + 20 = 4x
    21 = 4x — x
    21 = 3x
    x = 21/3
    x = 7

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69 − = 61