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if you are doing a expression and you have 9-9 and you get zero would you leave the zero there or get red of it

 Mar 4, 2015

Best Answer 

 #2
avatar+118608 
+5

9-9=0

5x+9-9=5x

 Mar 5, 2015
 #1
avatar+272 
+5

9-9 = 0

so yeah just leave zero

 Mar 5, 2015
 #2
avatar+118608 
+5
Best Answer

9-9=0

5x+9-9=5x

Melody Mar 5, 2015

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