Skip to content
Absolute Value
Example 2

Example 2: Absolute Value Equations

Step-by-step worked example for this lesson track.

Problem

Greater solution of x0=8 is ?\text{Greater solution of }|x-0|=8\text{ is }?

1. Recognize Pattern

xh=dx=h±d|x-h|=d\Rightarrow x=h\pm d

2. Apply Method

x10=9x{1,19}|x-10|=9\Rightarrow x\in\left\{1,19\right\}

3. Conclude

x=0±8x{8,8}x=0\pm8\Rightarrow x\in\left\{-8,8\right\}

Final answer

x=0±8x{8,8}x=0\pm8\Rightarrow x\in\left\{-8,8\right\}