Chapter 3 - Solving Inequalities - 3-7 Absolute Value Equations and Inequalities - Practice and Problem-Solving Exercises - Page 212: 67

We can rewrite the inequality using 'or' since we solve two equations that are in the form abs(A) = b and we get A = b and A = -b.

The definition of absolute value is the distance from zero a number is. So, if the absolute value of a number is 'x' units from 0, the two possible values for 'x' are x and -x (since -x is x units from 0).