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Solve for x and y by cross multiplicatio...

Solve for `x` and `y` by cross multiplication method
`x + y = a + b`
` ax – by = a^(2) – b^(2)`

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Knowledge Check

  • Solve the following by using cross multiplication method 4x - 7y + 28 = 0 , 5y - 7 x + 9 = 0

    A
    `x = 4` and `y = 5`
    B
    `x = 5` and `y = 6`
    C
    `x = 6` and `y = 7`
    D
    `x = 7` and `y = 8`

  • Solve for x and y. x+y=a+b ax-by=a^(2)-b^(2)

    A
    `x=b,y=-b`
    B
    `x=b,y=a`
    C
    `x=-a,y=-b`
    D
    `x=a,y=b`

  • Solve the following system of linear equations by cross-multiplication method. 3x +4y=7 and 2x + 5y =6

    A
    `(11)/(7), (4)/(7)`
    B
    `-(11)/(7), (4)/(7)`
    C
    `11, (5)/(7)`
    D
    None of these

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    Solve the following system of equations by cross multiplication method 3x - 5y = 20 and 7x + 2y = 17.

    Solve by cross multiplication x+2y+1=0 ,2x-3y-12=0

    Solve the following pair of linear equations by cross-multiplication method.(a-b)x+(a+b)y=2a^(2)-2b^(2)ax-by=a^(2)+b^(2)

    Solve the following equation by cross- multiplication method: (a)/(x)-(b)/(y)=0 and a(b^(2))/(x)+a(b^(2))/(y)=a^(2)+b^(2)

    Solve the following pair of linear equations by cross multiplication method. : x+2y=2, x-3y=7

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