4. Solving Absolute Value Equations
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Recall the definition of a midpoint. Use it when writing an absolute value equation.
|x-b|=d
We want fill in an absolute value equation of the following form.
|x- |= |
The given number line shows that b is at an equal distance d from both points a and c. Therefore, b is a midpoint. This means that a and c are solutions to the following equation. |x-Midpoint|=Distance to midpoint Now we can substitute values for the midpoint and distance.
|x- b|= d |