Thursday, May 9, 2013

Solve the absolute value inequality

|x-1|+2<5 
|x-1|+2-2<5-2 
|x-1|<3 
which means 
-3%3C+x-1%3C3 
-3%2B1%3Cx-1%2B1%3C3%2B1 
-2%3Cx%3C4 

interval notation: 
(-2,4)
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