Variable
Definition of Variable

• Variables are (usually) letters or other symbols that represent Unknown numbers or values.

Examples of Variable

• The following are examples of algebraic expressions and equations containing variables.
  2x + 5 = 10, the Variable here is x
  7y + 10 = 24, the Variable here is y
  a² + b², the variables here are a and b
  

Solved Example on Variable

Identify the variables in the equation, y = 3x + 2.                    
Choices:
A. 2 and y
B. x and y
C. x and 3
D. 2 and 3
Correct Answer: B
Solution:
Step 1: Variables are letters or other symbols that represent Unknown numbers or values.
Step 2: Therefore, x and y are the variables in the given equation
y = 3x + 2.

Related Terms for Variable

• Algebraic Expression
• Equation
• Symbols

Additional Links for Variable

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