#### Answer

$$ y =2-e^x $$

#### Work Step by Step

Given $$ x=\ln t,\ \ \ \ y= 2-t $$
Since $ t=e^x $, then
\begin{align*}
y&= 2-t\\
&= 2-e^x
\end{align*}
i.e.
$$ y =2-e^x $$

Published by
W. H. Freeman

ISBN 10:
1464125260

ISBN 13:
978-1-46412-526-3

$$ y =2-e^x $$

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