what is the definition of the math term varible expression
http://www.aaamath.com/equ723-evaluate-1variable.html
A variable expression in mathematics refers to an algebraic expression that contains one or more variables, numbers, and operations such as addition, subtraction, multiplication, and division. It is commonly used to represent mathematical relationships or formulas.
To understand the definition of a variable expression, you can break it down into two parts: "variable" and "expression."
1. "Variable": In mathematics, a variable is a symbol (usually a letter) that represents an unknown value or a changing quantity. It is used to generalize mathematical relationships and solve equations. For example, in the expression "3x," the letter "x" is a variable.
2. "Expression": An expression is a combination of variables, numbers, and operations that can be simplified or evaluated. It does not contain an equals sign (=) and cannot be solved. For example, in the expression "2x + 5," "2x" and "5" are combined using the addition operation.
To determine the definition of a specific variable expression, you can analyze the expression itself. Identify the variables, constants (numbers), and operations involved. Consider the context in which the expression is used to understand its meaning and purpose.
Overall, a variable expression is a mathematical notation that represents a mathematical relationship or formula using variables, numbers, and operations. It allows flexible representation of various values and calculations.