SOLUTION: solve the inequality 4<-z-4<11. Give the result in set notation and graph it. can someone please explain this to me. ty

Question 626980: solve the inequality 4<-z-4<11. Give the result in set notation and graph it.
can someone please explain this to me. ty
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
4<-z-4<11
-----
Add 4 along the line to get:
8 < -z < 15
----
Multiply by -1 along the line.
Remember that multiplying or dividing
an inequality by a negative reverses
the inequality.
----
-15 < z < -8
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Cheers,
Stan H.
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