Question

algebra
Variables generalized numbers).
We cese ,
to
represent )​

Answer 1

Explanation:

A variable is a placeholder for an unknown quantity. Usually, variables are denoted by English or Greek letters or symbols such as

x

or

θ

.

Variable are placeholders for unknown values. Usually, variables are denoted by letters or symbols such as x, A, or theta.

Image by Caroline Kulczycky

Examples:

In the equation

10

=

2

x

,

x

is the variable.

In the equation

y

+

2

=

6

,

y

is the variable.

In the equation

2

P

+

13

θ

=

24

,

P

and

θ

are variables.

Variables are often used in expressions and equations! Equations with several variables are called literal equations.