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-2<x-9<3
5 months ago
Q:
-2<x-9<3
Accepted Solution
A:
$\begin{array} { l }x-9 > -2,\\x-9 < 3\end{array}$
$\begin{array} { l }x > 7,\\x-9 < 3\end{array}$
$\begin{array} { l }x > 7,\\x < 12\end{array}$
$\begin{align*}&x \in \langle7, 12\rangle \\&\left\{ \right\}\end{align*}$