Solve: |3 - 7x| < -1
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Answer:
|3-7x|<-1
means
3-7x<+-1
3-7x<1 and 3-7x<-1
-7x<1-3 -7x<-1-3
-7x<-2 -7x<-4
x>2/7 x>4/7
hope is it helpful to you
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