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    • What is a letter-number or variable in Class 7 Maths NCERT Chapter 4?
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    What is a letter-number or variable in Class 7 Maths NCERT Chapter 4?

    Ajit Kumar Dubey 21st Jul, 2022
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    Ajit Kumar Dubey 21st Jul, 2022

    A letter-number is a symbol (like x or y) that represents an unknown number or changing quantity, helping to write general rules and formulas.

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