In mathematics, a combination of operations on letters and numbers is known as an expression, which includes numbers, variables, and operators. Examples like '2x + 3' illustrate how expressions are formed. Therefore, the correct answer from the given options is expression. ;
The combination of operations on letters and numbers is called an expression, which includes numbers, variables, and operations. From the given options, the correct answer is expression. An example of an expression is 2 x + 3 , which represents a mathematical combination involving a variable and numbers.
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