SOLUTION: -8<3r-1<1

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Question 57968: -8<3r-1<1
Answer by jai_kos(139) About Me  (Show Source):
You can put this solution on YOUR website!
-8<3r-1<1
Solution:
Given - 8 < 3r-1 < 1
Add 1 to the above inequality, we get
- 8 +1 < 3r -1 + 1 < 1 + 1
- 7 < 3r < 2
Now divide the above equation by 3 we get,
(-7/3) < r < (2/3)
The solution is (-7/3) < r < (2/3)