SOLUTION: what is the inequality of -9<2z+7<10

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Question 502762: what is the inequality of -9<2z+7<10
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

-9%3C2z%2B7%3C10 Start with the given compound inequality.


-9-7%3C2z%3C10-7 Subtract 7 from all sides.


-16%3C2z%3C10-7 Combine like terms on the left side.


-16%3C2z%3C3 Combine like terms on the right side.


%28-16%29%2F2%3Cz%3C%283%29%2F2 Divide all sides by 2.


-8%3Cz%3C3%2F2 Reduce.


So our answer is -8%3Cz%3C3%2F2