Question 595434: How is this answer thus far?
1.)-53<9v+1<-26
-53-1<9v<-26
-52<9v<-26
Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website! You subtracted 1 from the middle, so you need to do that to the left and right sides.
On the left, you'll get -53 - 1 = -54 (not -52)
On the right, you'll get -26 - 1 = -27
So you should have -54 < 9v < -27
From here, divide all sides by 9 to get
-54/9 < 9v/9 < -27/9
-6 < v < -3
which is the answer.
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