Before we can solve the given equation, we need to isolate the absolute value expression using the Properties of Equality.
|n|+7=9 ⇒ |n|=2An absolute value measures an expression's distance from a midpoint on a number line.
|n|=2
This equation means that the distance between n and 0 is 2, either in the positive direction or the negative direction. This can be expressed as a pair of equations equivalent to the absolute value equation.
|n|=2 ⇒ ln= 2 n= - 2
