a) 1/3 +4/3 x = 2,5 b) |x + 1/5 | – 1/3 =4

Question

a) 1/3 +4/3 x = 2,5
b) |x + 1/5 | – 1/3 =4

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Doris 5 years 2020-10-17T05:04:20+00:00 2 Answers 115 views 0

Answers ( )

  1. Nho
    0
    2020-10-17T05:05:41+00:00
    Reply

    Đáp án:

     

    Giải thích các bước giải:

     

    a-1-3-4-3-2-5-b-1-5-1-3-4

  2. kiet
    0
    2020-10-17T05:05:53+00:00
    Reply

    Bạn tham khảo!
    $a)$ $\dfrac{1}{3}$ $+$ $\dfrac{4}{3}$ $.$ $x$ $=$ $2.5$
    $→$ $\dfrac{4}{3}$ $.$ $x$ $=$ $2.5$ $-$ $\dfrac{1}{3}$
    $→$ $\dfrac{4}{3}$ $.$ $x$ $=$ $\dfrac{13}{6}$
    $→$ $x$ $=$ $\dfrac{13}{6}$ $:$ $\dfrac{4}{3}$
    $→$ $x$ $=$ $\dfrac{13}{8}$
    $b)$ $|$ $x$ $+$ $\dfrac{1}{5}$ $|$ $-$ $\dfrac{1}{3}$ $=$ $4$
    $→$ $|$ $x$ $+$ $\dfrac{1}{5}$ $|$ $=$ $4$ $+$ $\dfrac{1}{3}$
    $→$ $|$ $x$ $+$ $\dfrac{1}{5}$ $|$ $=$ $\dfrac{13}{3}$
    $→$ $x$ $+$ $\dfrac{1}{5}$ $=$ $\dfrac{13}{3}$ và $x$ $+$ $\dfrac{1}{5}$ $=$ $\dfrac{-13}{3}$
    $→$ $x$ $=$ $\dfrac{13}{3}$ $-$ $\dfrac{1}{5}$ và $x$ $=$ $\dfrac{-13}{3}$ $-$ $\dfrac{1}{5}$
    $→$ $x$ $=$ $\dfrac{62}{15}$ và $x$ $=$ $\dfrac{-68}{15}$
    $FbBinhne2k88$

     

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )