Question 624905
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Hi,
A one-cup serving of orange juice contains <u>3 mg less than four times</u> the amount{{{highlight(x)}}}  of vitamin C as a one-cup serving of pineapple juice. 
<u>Servings of the two juices</u> contain a total of 122 mg of vitamin C.
Yes! You have the idea of identifying the OJ and P...that is the KEY thing!
Set Up is to add the two,however
Question states***  OJ   +   P  = 122mg
 122mg = (4x-3mg) + x
 125 = 5x
  x = 25mg, amount on P.   OJ has 97mg   {{{4*25-3}}}