Absolute Value Equations
You can also use the isolating variable method to solve absolute value
equations.
Roll over the underlined term to learn more.
Similar to the absolute value of a number, the absolute value of an expression is also always positive. If the absolute value of an expression is equal to a number, this means that the expression is equal to the number or the opposite of the number.
Consider the example of 
.
If 
So the equation has two possible solutions:
|
|
|
Both 8 and 
satisfy the equation 
Select Show Answer to learn more.
