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-p<|x|<p ó -p>|x|<p depende del problema ok pero siempre esta relación entonces...
sí.......
|5x-2|<6
-6<|5x-2|<6 se despeja "x" (-6+2)/5< |x|<(6+2)/5
-4/5<|x|<8/5
-4/5<x<8/5
{x/ x E x>-4/5} U
{×/ x E x<8/5}