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Mathematics 13 Online
OpenStudy (anonymous):

Solving Inqualities. |x| - |x-1| < 1

OpenStudy (anonymous):

need cases for this one

OpenStudy (anonymous):

if \(x>1\) then \(|x-1|=x-1\) and \(|x|=x\) so you get \[x-(x-1)<1\]\[1<1\] which is false, so it is never true when \(x>1\)

OpenStudy (anonymous):

if \(x<0\) then \(|x|=-x\) and \(|x-1|=1-x\) so you get \[-x-(1-x)<1\] \[-1<1\] and so it is always true of \(x<0\)

OpenStudy (anonymous):

last job is to figure out what happens is \(0<x<1\)

OpenStudy (anonymous):

I get that as the solution too. 0< x < 1. However it seems the solution should be -infinity < x < 1.

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