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Homework Help: Eliminate some variable from two equations

  1. Sep 23, 2007 #1
    How can I eliminate T from these equations

    (1) a = (X-T)/X
    (2) a = 4T/Y
  2. jcsd
  3. Sep 23, 2007 #2


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    Here's a kind of obvious thought: solve the second equation for T (it's much easier to solve for t than the first). Replace the T in the first equation with that expression.
  4. Sep 23, 2007 #3
    So it would be a = 4(X-aX)/Y ?
  5. Sep 23, 2007 #4
    If those are all free variables, you wont be able to solve the system as you have 3 variables and only 2 equations.

    and yes, it would be so.

    Correct me if I am wrong.
  6. Sep 23, 2007 #5
    Thanks for the help! I'm very rusty :)
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