1. 

   math_celebrity Administrator Staff Member

   pq = 7x, qr = x + 1, and pr = 9, what is qr
   
   PQ + QR = PR
   7x + x + 1 = 9
   
   Using our equation solver, we get:
   x = 1
   
   Plug in x = 1 to QR:
   1 + 1 = 2

    

   math_celebrity, Apr 5, 2023

   #1
   
   

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