1. 

   math_celebrity Administrator Staff Member

   Divide the difference of 4 and r by 10
   
   The difference of 4 and r, mean we subtract r from 4:
   4 - r
   
   Now we divide this expression by 10:
   (4 - r)/10

    

   math_celebrity, Jun 21, 2019

   #1
   
   

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