Variable
In mathematics, a variable is a symbol or letter that represents a quantity that can vary or change
In mathematics, a variable is a symbol or letter that represents a quantity that can vary or change. In algebra, variables are often used to represent unknown numbers or values.
Variables can be used in equations to help solve for a specific quantity. For example, if we have an equation like “2x + 5 = 12”, the variable “x” represents the unknown value that we need to find. We can manipulate the equation using algebraic operations to isolate the variable and solve for its value.
Variables can also be used in mathematical expressions to represent relationships between quantities. For instance, the formula for the area of a rectangle is often written as “A = l * w”, where “A” represents the area, “l” represents the length, and “w” represents the width.
Variables allow us to generalize mathematical ideas and work with unknown quantities. They are fundamental tools in algebra and are used throughout various branches of mathematics as a way to solve problems and describe mathematical relationships.
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