As prof zalman usiskin reminds us, a variable need not only stand for numbers.

Variable meaning in math. In mathematics, a variable is a representation, in the form of a letter, of a numerical value. Discrete variables (aka integer variables) counts of individual items or values. Variables are often introduced in math by asking students.

In simpler terms, a variable stands as a symbol for an unknown number whose value is not given. Variable, in algebra, a symbol (usually a letter) standing in for an unknown numerical value in an equation. 3 is a coefficient because it is being multiplied by a variable.

In x + 2 = 6, x is the variable. A variable is often talked about in mathematics class as a symbol that stands for numbers. For example, in the equation x + 2 = 5, the x is being used as a variable.

It is usually a letter like x or y. Number of different tree species in a forest. A symbol that has a fixed numerical value is called a constant.

For example, x + 8 = 16; In algebra, a variable is usually a letter or other symbol that stands for a number or quantity that may vary. The first time kids run across variables is usually in a math class.

Variables can also be used to represent functions as well as quantities. “x” here acts as a variable. Variables in math have two parts: