| http://www.w3.org/ns/prov#value | - I will keep it in mind next time I make a question for GMATClub!You are absolutely correct regarding your answers and explanations and you have solved using algebra so I am not going to repeat that method. (If someone wants to get the complete algebra based solution from me, drop in a post or pm me)But I would like to suggest that if the numbers are small and easy to work with, using hit and trial
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