I think it mean is 12-4
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A numerical expression is defined as a combination of numbers and one or more operation symbols. An example is 5 + 7 - 1.
There is no answer -_-
A numerical expression is a mathematical phrase involving only numbers and one or more operational symbols. The following are some examples of numerical expressions. For example, the numerical expression 4 + 20 - 7 in the example above simplifies to the number 17.
A numerical expression in math terms has numbers and operations like for an example 1. 4+9 2. (8-2)+5
in mathematics, numerical coefficient refers to the constant multiplicative factors attached to the variables in an expression are known as Numerical Coefficient. It differs from Literal Coefficient.The Numerical Coefficient is always written in front of the variable as shown in the expression given below: , where are numerical coefficients.Numerical Coefficient is more frequently referred as Coefficient.the numerical coefficient for the term 10x4 is 10.The numerical coefficients for the expression 3x2 + x + 1 are 3, 1, and 1.