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Math Help - solving system of equations

  1. #1
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    solving system of equations

    ‎6x+5y=150
    3x+2z=350

    How can i find x,y,z from just two equations?
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  2. #2
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    Re: solving system of equations

    Quote Originally Posted by Mhmh96 View Post
    ‎6x+5y=150
    3x+2z=350

    How can i find x,y,z from just two equations?
    This system is undetermined . Solution is given by :

    (x,y,z)=\left(x,\frac{150-6x}{5},\frac{350-3x}{2}\right)
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  3. #3
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    Re: solving system of equations

    What if i want to compare 5y and 2z?
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  4. #4
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    Re: solving system of equations

    Quote Originally Posted by Mhmh96 View Post
    What if i want to compare 5y and 2z?
    Then you should compare :

    (150-6x)~\text{and}~(350-3x)
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  5. #5
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    Re: solving system of equations

    But how if i dont know the value of x?
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  6. #6
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    Re: solving system of equations

    Quote Originally Posted by Mhmh96 View Post
    But how if i dont know the value of x?
    You can compare them only if you know value of x .
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