Now, "absolute value" can be thought of as "distance from 0 on the number line". If something has an absolute value less than 10, then that something must lie between -10 and 10 on the number line. The "something" in this case is 3x - 2. And we know that
-10 < 3x - 2 < 10
Or, you can think in terms of two inequalities:
-10 < 3x - 2 AND 3x - 2 < 10
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