We need to find a number that divided by -1 gives -31
So we call that number "X" and create a simple equation to solve for this representing the operations needed:
x divided by "-1" equals -31
If we multiply both sides of this equation by the value "-1" we can get "x"isolated on one side and have the answer:
[tex]\frac{x}{-1}=-31[/tex]Multiplying both sides by (-1) we get to cancel that -1 in the denominator of x:
[tex]\begin{gathered} \frac{x}{-1}\cdot(-1)=-31\cdot(-1) \\ x\text{ = -31 }\cdot\text{(-1)} \\ x\text{ = 31} \end{gathered}[/tex]Notice that multiplying on the right by -1 also changed the signe of -31 making it positive 31
Therefore x must be 31
So you write:
31 divided by (-1) = -31
