prompt: Selina is selling some of her old clothes to a second-hand store. They will buy her pants for $5 each, her shorts for $3 each, and her shirts for $4 each. She sells 3 pairs of pants, 5 pairs of shorts, and some shirts. After she gets her money, she sees 2 shirts that she likes which cost $10 each and buys them. She leaves the store with $30. How many shirts did she sell to the store?
messages.content: Selina is selling some of her old clothes to a second-hand store. They will buy her pants for $5 each, her shorts for $3 each, and her shirts for $4 each. She sells 3 pairs of pants, 5 pairs of shorts, and some shirts. After she gets her money, she sees 2 shirts that she likes which cost $10 each and buys them. She leaves the store with $30. How many shirts did she sell to the store?
messages.role: user
messages.content: The shirts she bought cost her $20 because 2 x 10 = <<2*10=20>>20
  She earned $50 selling her clothes because 20 + 30 = <<20+30=50>>50
  She made $15 off pants because 3 x 5 = <<3*5=15>>15
  She made 15 dollars from shorts because 3 x 5 = <<3*5=15>>15
  She made $20 off shirts because 50 - 15 - 15 = <<50-15-15=20>>20
  She sold 5 shirts because 20 / 4 = <<20/4=5>>5
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messages.role: assistant