Solving systems of linear equations - Harder example | Math | SAT | Khan Academy

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  • Опубликовано: 18 ноя 2024
  • Watch Sal work through a harder Solving systems of linear equations problem.
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Комментарии • 14

  • @stupidropes5268
    @stupidropes5268 3 месяца назад

    just do 9/2 = 4.5 and then divide 14y by 4.5 to find the answer.

  • @zyadammar6448
    @zyadammar6448 4 года назад +7

    3:23 why did we Multiple each side by 2?

    • @sarthaksonawane2911
      @sarthaksonawane2911 4 года назад +3

      To get rid of 2 in denominator in left hand side

    • @zyadammar6448
      @zyadammar6448 4 года назад +2

      @@sarthaksonawane2911 oh thank you, and why did we flip the sides and made reciprocal?

    • @sarthaksonawane2911
      @sarthaksonawane2911 4 года назад +3

      @@zyadammar6448 it's cuz 'a' was in denominator........your wlc

  • @Geeking_Out_On_STEM
    @Geeking_Out_On_STEM 5 месяцев назад +1

    ruclips.net/video/pBN9951GcNg/видео.html with the test being digital luckily it can be solved this way too now.

  • @gouthamkumar4844
    @gouthamkumar4844 4 года назад +8

    What I don't think this problem will not take more than 20 sec .we can do it by using A1/A2=b1/b2≠c1/c2

    • @sanjogsharma8309
      @sanjogsharma8309 4 года назад +1

      Please explain me

    • @shivrammohan9081
      @shivrammohan9081 4 года назад +1

      Class 11 Mai padhe hai😂
      Btw I'll give my SAT next year, wish me luck

    • @shivrammohan9081
      @shivrammohan9081 4 года назад +1

      @@sarthaksonawane2911 that's great! Which university are you gonna apply to?

    • @shivrammohan9081
      @shivrammohan9081 4 года назад +2

      @@sarthaksonawane2911 that's great, I'm planning for MIT, Stanford,UC Berkeley, Carnegie Mellon... Or JEE😂😂😂

    • @kianamcintyre9671
      @kianamcintyre9671 Год назад +1

      ​@@sarthaksonawane2911WelL what was ur result?

  • @samiulislamdurjoy
    @samiulislamdurjoy 4 года назад +1

    M 150