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**1. Homework Statement**

How do I express t and s as functions of x and y given

x = -(2t+1)*s/(t^2-1)

y = e^(t + ln|s|)

I keep getting stuck in a loop.

**2. Homework Equations**

substitution

**3. The Attempt at a Solution**

x= -(2t+1)*s/(t^2-1)

I get t = sqrt(1-s/x)

t = sqrt(1-s/x)

s = e^(-t)y

substituting the terms in either expression gets me stuck in a loop. What am I doing wrong?

what I need is t = T(x,y) and s = S(x,y). The other important part is that s needs to stay any real number.

Thanks!

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