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https://math.answers.com/math-and-arithmetic/Does_a_mathematical_expression_have_to_have_variables
Does a mathematical expression have to have variables? - Answers
Yes. Expressions cannot be expressed without variables. There are numerical expressions for ex. 2 + 3 is an expression without variables.
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Does a mathematical expression have to have variables? - Answers
https://math.answers.com/math-and-arithmetic/Does_a_mathematical_expression_have_to_have_variables
Yes. Expressions cannot be expressed without variables. There are numerical expressions for ex. 2 + 3 is an expression without variables.
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Does a mathematical expression have to have variables? - Answers
Yes. Expressions cannot be expressed without variables. There are numerical expressions for ex. 2 + 3 is an expression without variables.
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