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substitute 9x-4y=200 / 7x-3y=200

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substitute 9x-4y=200 / 7x-3y=200

    • Posted by Ayush Pundhir 5 years, 2 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Ankush From Bhind 5 years, 2 months ago

    Value of y is 16 Value of x is 264/9

    0Thank You

    ꧁༒ Shaurya༻ 5 years, 2 months ago

    9x-4y=200. ......(1) 7x-3y=200. ......(2) Take eq (2) 7x-3y=200 7x=200+3y x=200+3y/7. ....(3) Put eq(3) in eq(1) 9(200+3y/7)-4y=200 1800+27y-4y=200*7 1800+23y=1400 23y=1400-1800 23y= -400 y=-400/23 Put the value of y in eq 2 7x-3(-400/23)=200 7x+1200=200*23 7x+1200=4600 7x=4600-1200 7x=3400 x=3400/7

    0Thank You

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    Posted by Hari Anand 5 months, 1 week ago

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