SOLUTION: -4<-3x-13<26

Algebra.Com
Question 72908: -4<-3x-13<26
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!

Add 13 to all sides (this cancels the -13)
Divide all sides by -3 (remember multiplying or dividing a negative flips the greater and less than signs)

Rearrange in a familiar form. So this is the solution range.
Check:
Pick any number within -13 to -3, let x=-5


It's in range and it works. We could check this further by trying every number but I did one to show that the solution works for that number.

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