• Mustahkamlash
  • Baholash: Uyga vazifa
  • Rivojlantiruvchi
  • 1-Mavzu: Natural son tushunchasi




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    Bog'liq
    7-sinf 2018 algebra

    2-xossa. Agar to‘g‘ri tenglikning ikkala qismini nolga teng bo‘lmagan ayni bir songa ko‘paytirilsa yoki bo‘linsa, u holda yana to‘g‘ri tenglik hosil bo‘ladi.

    Ya’ni, agar a = b bo‘lib, m ≠ 0 bo‘lsa, u holda a ∙ m = b ∙ m va


    a : m = b : m bo‘ladi.

    94-misol.


    1) 0,71x+1,98=0,37x-1,76 0,71x-0,37x=-1,76-1,98


    0,34x=-3,74 x=-11

    2) (5x-1)-2,7x+0,2x=6,5-0,5x /∙5 25x-2,7x+0,2x+0,5x=6,5+5


    23x=11,5 x=0,5

    3) 0,18y-7,4=0,05y-5,71 0,18y-0,05y=7,4-5,71


    0,13y=1,69 y=13

    4) 0,36x-0,6=0,3∙(0,4x-1,2) 0,36x-0,6=0,12x-0,36


    0,36x-0,12x=0,6-0,36 0,24x=0,24 x=1


    Mustahkamlash

    97-misol.


    1) 28-20x=2x+25-16x-12-6x 28-25+12=2x-16x-6x+20x


    15≠0

    2) 25x-17=4x—5-13x+14+34x 25x-4x+13x-34x=17-5+14


    0≠26
    3) /∙12 4x-4+5x+2=15+9x
    9x-9x=19-2 0≠17
    4) /∙15 10x+5-7x-5=3x-6 3x-3x=-6 0≠-6
    98-misol.
    1) 3(x-1)-2(x+2)=4x+8 3x-3-2x-4-4x=8 3x=-7-8 x=-5
    2) 4(x+1,5)+3(1-x)=10 4x+6+3-3x=10 x=1
    3) 4(3x+2)-7(x+1)=3(x-1) 12x+8-7x-7=3x-3 5x-3x=-3-1 2x=-4 x=-2
    4) 2,5(2x+3)-2(x+2,5)=3,5+2x 5x+7,5-2x-5=3,5+2x
    3x-2x=3,5-2,5 x=1


    Baholash:


    Uyga vazifa: 102-misol


    O’IBDO’:
    Sana: Sinf:
    19-Mavzu: Masalalarni tenglamalar yordamida yechish.


    Darsning maqsadi:

    1. Ta’limiy: O’quvchilarga tenglama yechish qoidalarini misol va masalalarni yechishga qo’llashni o’rgatish

    2. Tarbiyaviy: Olingan bilimlarni xayotda qo’llay olish,o’quvchilarni vatanparvarlik ruhida tarbiyalash

    3. Rivojlantiruvchi: O`quvchilarning xotirasini shakllantirish, dunyoqarashini kengaytirish

    Tayanch kompetensiyalar:

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