Answer
The equation we set up is:
$\frac{x}{-9} = 5$
The solution to the equation is:
$x = -45$
Work Step by Step
We set up the equation as follows:
A number divided by $-9$ can be written as:
$\frac{x}{-9}$
The result is $5$ can be translated to:
$= 5$
Combining the two sides of the equation, we get:
$\frac{x}{-9} = 5$
To solve this equation, we need to get rid of the fraction by multiplying each side by $-9$:
$x = (5)(-9)$
$x = -45$