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using echelon method


pls help with problem. Once I get 24x -2y 36 I'm confused after that.

  • Math - ,

    Somebody expects you to solve a 2 by 2 system using matrices with echelon reduced form ??
    That's like going to the corner store to buy milk in an 18 wheeler tractor-trailer.

    Furthermore the system has no solutions, since if you multiply the first by 5, you get
    20x - 10y = 45
    now subtract the two to get
    0 = 18
    CONTRADICTION, so no solution.

  • Math - ,

    Thanks Reiny

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