Answer
$x=-54$
Work Step by Step
Multiplying both sides by $
-6
$, then the solution to the given equation, $
\dfrac{-x}{6}=9
$, is
\begin{array}{l}\require{cancel}
-6\cdot\dfrac{-x}{6}=9\cdot(-6)
\\\\
\dfrac{6x}{6}=-54
\\\\
x=-54
.\end{array}