Answer:
[tex]\huge\boxed{-1}[/tex]
Step-by-step explanation:
In order to solve an equation, our goal is to isolate the variable on one side of the equation.
As of now, we have [tex]-x = 28[/tex]
This is the exact same thing as [tex]-1x = 28[/tex], since a negative sign also means you multiply it by -1.
We want to divide both sides by the coefficient on x so that we have x, positive and isolated, on one side of the equation.
Therefore we want to divide by -1.
Hope this helped!
