if we need to find a particular value,we replace it temporarily as x and solve for it.

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p

**is used**for the**variable**price and q**is used**for the**variable**quantity. An expression**such**as 4x^{3}**is**a**variable**. It**can**assume different values because**x can**assume different values. ... A monomial**is**an**algebraic**expression that**is**either a numeral, a**variable**, or the product of numerals and**variables**.- 1

**'Algebra' , a broad part of mathematics , is where variables are used mostly to represent certain terms in an equation . ... ' Variables ' are used to represent certain unknown values. x, y, z and many other letters of English alphabet , also Greek alphabet is used . These represent the unknown terms/values .**- 0

Hello there, Naman Aggrawal.

We use variables in equations and expressions to replace an unknown numbers.

The definition of a variable is- An algebraic letter used in place (replaces) a unknown number or quantity. For example, an example of an equation is a + c= b and bd-ds (when 2 variables are put together they are being multiplied). These 2 examples or of an equation and of an expression using variables.

Hope this helps,

have a great day.

We use variables in equations and expressions to replace an unknown numbers.

The definition of a variable is- An algebraic letter used in place (replaces) a unknown number or quantity. For example, an example of an equation is a + c= b and bd-ds (when 2 variables are put together they are being multiplied). These 2 examples or of an equation and of an expression using variables.

Hope this helps,

have a great day.

- 0