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OpenStudy (anonymous):
Solve |x| + 7 < 4. {x | x < -11 or x > -3} {x | -3 < x < 3} Ø
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OpenStudy (anonymous):
do we have a-d or do we just have to solve?
OpenStudy (dls):
|x|+7<4 |x|<4-7 |x|<-3 when x>0 x<-3 when x<0 x>3 so -3<x<3
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