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solve x and y x+y=3 4x_3y=26

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solve x and y x+y=3 4x_3y=26

    • Posted by Shahid Hassan 6 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Yogita Ingle 6 years, 11 months ago

    x + y = 3
    x = 3 - y........ (i)

    4x - 3y = 26...... (ii)
    Put (i) in (ii)
    4(3 - y) - 3y = 26
    12 - 4y - 3y = 26
    -7y = 26 - 12
    -7y = 14
    y = -2
    Y = -2 in (i)
    x = 3 - (-2)
    x = 3 + 2
    x = 5
     

    1Thank You

    Guddu Guddu 6 years, 11 months ago

    X+y=3 .......... (1) 4x_3y=26..........(2). Multiply equation (1) by 3& equation (2) by1 to make coefficient of y equal 3x+3y=9...........(3). 4x_3y=26..........(4). From equation (3)&(4). X=5&y=_2

    1Thank You

    Gautãm . 6 years, 11 months ago

    x=5, y=-2

    2Thank You

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