Update README.md

Signed-off-by: Fabiana 🚀  Campanari <113218619+FabianaCampanari@users.noreply.github.com>

Author: FabianaCampanari

README.md

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 Z = 260
 
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 ## Excel Solver Example – Linear Programming with Simplex
 
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 ### 🎯 Objective:
 
 ### ***Mathematically model the **Linear Programming (LP)** problem to **maximize profit** under resource constraints***.
 
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 ### 🧠 Step-by-Step Modeling;
 
 #### 1. [Decision Variables]()
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