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If the system of equations x+y+z=7,x+2y+3z=10,x+3y+`alpha` z=`beta` has infinitely many solutions, then `beta+alpha` equals (A) 18 (B)8 (C) 13 (D) 5

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Knowledge Check

  • If the system of equations x+ y+z = 5 x+ 2y + 3z =9 x +3y + az = beta has infinitely many solutions, then beta-alpha equals

    A
    `8`
    B
    `18`
    C
    `21`
    D
    `5`

  • If the system fo equations x+y+z = 5 x + 2y + 3z = 9 x + 3y + alphaz = beta has infinitely many solution, then beta - alpha equals

    A
    5
    B
    18
    C
    21
    D
    8

  • If the system of equation x - 2y + 5z = 3 2x - y + z = 1 and 11x - 7y + pz = q has infinitely many solution, then

    A
    `p + q = 2`
    B
    `p + q = 10`
    C
    `p-q=2`
    D
    `p-q=5`

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