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You have linear functions $p(x)$ and $q(x)$. You know $p(2)=3$, and $p(q(x))=4x+7$ for all $x$. Find $q(-1)$. 

 Apr 29, 2021
 #1
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q(-1) = 4.

 May 2, 2021
 #2
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The answer was 2. 

 May 3, 2021

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