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  # i feel really stupid
  
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  There are 27 red or blue marvels in a bag. The number of red marbles is 5 less than 3 time the number of blue marbles. How many red marbles are in the bag? How many blue marbles are in the bag?
  
  Mar 5, 2020
  
  #1
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  Number  red  = R
  
  Number  blue  = 3R - 5
  
  So
  
  R  + 3R - 5  = 27
  
  4R  -  5  = 27    add  5 to both sides
  
  4R  = 32   divide both sides  by   4
  
  R  = 8
  
  Number blue  =  3(8)  - 5  =   19
  
  Mar 5, 2020