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Yes, of course you can. So long as the variable does not have another known value, you can use any variable. For example, you could say d+2=7 and d would equal 5. That would not be different from D+2=7, would it?

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11y ago
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4d ago

In most programming languages, variable names are case-sensitive, meaning that you can use any combination of upper and lower case letters. However, it is generally recommended to follow naming conventions and use consistent casing to improve readability and maintainability of your code.

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Q: Can you use any lower case letter you want in a variable?
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