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Mít Mít
Mít Mít

Mít Mít

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Mít Mít
Asked: Tháng Mười 24, 20202020-10-24T06:48:19+00:00 2020-10-24T06:48:19+00:00In: Môn Toán

Cảm hơn Thack you vinamiu

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Cảm hơn
Thack you vinamiu
cam-hon-thack-you-vinamiu

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    1. King

      King

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      King
      2020-10-24T06:49:19+00:00Added an answer on Tháng Mười 24, 2020 at 6:49 sáng

      Bài 74:

      a) `541+(218-x)=735`

      `⇒ 541+218-x=735`

      `⇒ 759-x=735`

      `⇒ x=759-735=24`

      b) `5(x+35)=515`

      `⇒ 5x+175=515`

      `⇒ 5x=515-175=340`

      `⇒ x=340/5=68`

      c) `96-3(x+1)=42`

      `⇒ 3(x+1)=96-42=54`

      `⇒ x+1=54÷3`

      `⇒ x+1=18`

      `⇒ x=18-1=17`

      d) `12x-33=3².3³`

      `⇒ 12x-33=3^5`

      `⇒ 12x-33=243`

      `⇒ 12x=243+33=276`

      `⇒ x=276/12=23`

       

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    2. Maris

      Maris

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      Maris
      2020-10-24T06:49:41+00:00Added an answer on Tháng Mười 24, 2020 at 6:49 sáng

      $\text{Chào bạn. Bạn tham khảo nhé !}$
      $\text{Bài làm :}$ $\text{Bài 74 : Tìm x ∈ N, biết :}$
      $\text{a, 541 + ( 218 – x ) = 735}$
      $\text{                218 – x = 735 – 541}$
      $\text{                218 – x = 194}$
      $\text{                          x = 218 – 194}$
      $\text{                          x = 24}$
      $\text{b, 5( x + 35 ) = 515}$
      $\text{        x + 35 = 515 ÷ 5}$
      $\text{        x + 35 = 103}$
      $\text{        x = 103 – 35}$
      $\text{        x = 68}$
      $\text{c, 96 – 3( x + 1 ) = 42}$
      $\text{           3( x + 1 ) = 96 – 42}$
      $\text{           3( x + 1 ) = 54}$
      $\text{               x + 1 = 54 ÷ 3}$
      $\text{               x + 1 = 18}$
      $\text{               x = 18 – 1}$
      $\text{               x = 17}$
      $\text{d, 12x – 33 = 3^2 . 3^3}$
      $\text{    12x – 33 = 9 . 27}$
      $\text{     12x – 33 = 243}$
      $\text{     12x = 243 + 33}$
      $\text{      12x = 276}$
      $\text{          x = 276 ÷ 12}$
      $\text{          x = 23}$

      $\text{#I_love_Diamonds}$
      $\text{#No_copy}$
      $\text{Chúc bạn hok tốt nhé !}$
      $\text{Cho mik xin vote 5 sao + 1 cảm ơn + câu trl hay nhất nhé}$

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