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Mathematics 9 Online
OpenStudy (anonymous):

Solve |x|<5 is it {x|x<-5 or x>5}?

OpenStudy (anonymous):

no!!!!! It's -5>x>5 !

OpenStudy (anonymous):

\[-5 < \Re(x) < 5\] The weird R is real numbers.

OpenStudy (blacksteel):

|x| < k means that the magnitude of x < k, or -k < x < k. Thus, |x| < 5 means {x|-5<x<5}

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