3x-(5-2x)=4(3x-4) giúp mik vote 5 sao

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3x-(5-2x)=4(3x-4) giúp mik vote 5 sao

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Philomena 2 years 2021-05-07T23:39:03+00:00 2 Answers 10 views 0

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    0
    2021-05-07T23:40:45+00:00

    Đáp án:

     `x=11/7`

    Giải thích các bước giải:

    `3x-(5-2x)=4(3x-4)`

    `=>3x+2x-5=12x-16`

    `=>x5-5=12x-16`

    `=>x5=12x-16+5`

    `=>x5=12x-11`

    `=>-7x=-11`

    `=>x=-11÷(-7)`

    `=>x=11/7`

    0
    2021-05-07T23:40:47+00:00

    $\text{ 3x -( 5 – 2x )=4( 3x – 4 )}$

    $\text{ <=> 3x – 5 + 2x = 12x – 16 }$

    $\text{ <=> 3x + 2x – 12x = -16 + 5 }$

    $\text{ <=> -7x = -11}$

    $\text{ <=> x = $\dfrac{11}{7}$ }$

    $\text{ Vậy x = $\dfrac{11}{7}$ . }$

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