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Answer :

Answer:

30 pesos

Step-by-step explanation:

Given

  • Had 200 pesos originally
  • spends 'y' pesos on a notebook
  • Bought 4 colored pens with the rest of the money

Solving

  • Let money of the pen = x, money of notebook = y
  • 4x + y = 200
  • 4x + 80 = 200
  • 4x = 120
  • x = 30 pesos

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