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I'm not sure how to do this one.

9(-3r-7n)-6 use r=-6 and n=5 

math algebra
 Aug 13, 2014

Best Answer 

 #1
avatar+129852 
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9(-3r-7n)-6 use r=-6 and n=5 

9(-3(-6)-7(5)) - 6 =

9(18-35) - 6  =

9(-17) - 6  =

-153 - 6 =

-159

And there you go......

 

 Aug 13, 2014
 #1
avatar+129852 
+13
Best Answer

9(-3r-7n)-6 use r=-6 and n=5 

9(-3(-6)-7(5)) - 6 =

9(18-35) - 6  =

9(-17) - 6  =

-153 - 6 =

-159

And there you go......

 

CPhill Aug 13, 2014

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