Eliminate some variable from two equations

[danni7070]

How can I eliminate T from these equations

(1) a = (X-T)/X
(2) a = 4T/Y

 

[HallsofIvy]

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.

 

[danni7070]

So it would be a = 4(X-aX)/Y ?

 

[tabchouri]

If those are all free variables, you won't be able to solve the system as you have 3 variables and only 2 equations.

and yes, it would be so.

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Correct me if I am wrong.
http://ghazi.bousselmi.googlepages.com/présentation2[/QUOTE]

 

[danni7070]

Thanks for the help! I'm very rusty :)