dollvera dollvera

15-09-2017
Mathematics

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Some one please help !!! How do I solve -1<-x/3<1

Some one please help How do I solve 1ltx3lt1 class=

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mreijepatmat mreijepatmat

15-09-2017

- 1 < - x/3 < 1
1st. Multiply all parts by 3:

-3 < - 3x/3 < 3. Simplify the mid term:

-3 < -x < 3. Now multiply all terms by - 1. Note when you multiply by a negative number, you flip the inequality signs:

(-1)(-3) < (-1)(-x) < (-1)(3)

+3 > x> -3

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