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Matrix with unknown constants

  1. Aug 26, 2012 #1
    1. The problem statement, all variables and given/known data

    Suppose are h and k are unknown constants.
    The equations are:
    -3x-5y-6z=-4
    8x+6y-9z=8
    19x+17y+hz=k

    if h≠A then A=?

    2. Relevant equations



    3. The attempt at a solution
    I know that h is some number so that this system of equations has one or more solutions. Yet I'm having trouble where to start.
     
    Last edited: Aug 26, 2012
  2. jcsd
  3. Aug 26, 2012 #2
    would i have to use reduced echelon form?
     
  4. Aug 26, 2012 #3

    HallsofIvy

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    Staff Emeritus
    Science Advisor

    Could you please state the entire problem? Find h and k so that what is true about the system? That there exist a unique solution or that the exist many solutions or that there is no solution?

    You say 'if [itex]h\ne A[/itex] then A= ?' where did "A" come from?
     
    Last edited by a moderator: Aug 27, 2012
  5. Oct 12, 2012 #4
    Hi,
    I have an equation with one unknown. This is the 'B' in the equation. I need to solve for 'B'. Can you help me to rearrance this complex equation to solve for B in terms of everything else please?

    =(() - (DCRMgAl)) ∗ ^(−∗(()+()))+ ((DCRMgAl )- (DCRAl ))∗ ^(−∗∗() )+((Al) - (DCRMg)) ∗ ^(−∗(()+()))
     
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