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Thread: algebra

  1. May 4th 2009, 10:33 AM #1
    Crystal09
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    algebra

    solve for:
    a+3b=-1
    c+3d=3
    solve for a,b,c,d
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  2. May 4th 2009, 10:58 AM #2
    e^(i*pi)
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    Quote Originally Posted by Crystal09 View Post
    solve for:
    a+3b=-1
    c+3d=3
    solve for a,b,c,d
    You can't - there are four unknowns and two equations
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  3. May 4th 2009, 10:30 PM #3
    scouser
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    exactly
    somthin's missing here, there (almost) always has to be as many equations as unknowns, and thats always helpful to know.
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  4. May 4th 2009, 11:05 PM #4
    mr fantastic
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    Quote Originally Posted by Crystal09 View Post
    solve for:
    a+3b=-1
    c+3d=3
    solve for a,b,c,d
    You were told here http://www.mathhelpforum.com/math-he...-matrices.html that these equations can't be solved for numerical values of the unknowns.

    Thread closed.
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