SOLUTION: 4 < -z - 4 < 11

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Question 347977: 4 < -z - 4 < 11
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
4%3C-z-4%3C11 Start with the given compound inequality.


4%2B4%3C-z%3C11%2B4 Add 4 to all sides.


8%3C-z%3C11%2B4 Combine like terms on the left side.


8%3C-z%3C15 Combine like terms on the right side.


%288%29%2F-1%3Ez%3E%2815%29%2F-1 Divide all sides by -1 (this will flip the signs)


-8%3Ez%3E-15 Reduce.


-15%3Cz%3C-8 Rearrange the terms.


So the solution is -15%3Cz%3C-8


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