Expressions Math Example 1

Follow the full solution, then compare it with the other examples linked below.

Example 1

easy
Simplify the expression 4x+3x−24x + 3x - 2.

Solution

  1. 1
    Identify like terms: 4x4x and 3x3x both contain xx.
  2. 2
    Combine like terms: 4x+3x=7x4x + 3x = 7x.
  3. 3
    The simplified expression is 7x−27x - 2.

Answer

7x−27x - 2
Like terms have the same variable raised to the same power. They can be combined by adding their coefficients while keeping the variable part unchanged.

About Expressions

A combination of numbers, variables, and operations (like addition, subtraction, multiplication, division) that represents a mathematical quantity. Unlike equations, expressions do not contain an equals sign and cannot be solved — they can only be simplified or evaluated.

Learn more about Expressions →

More Expressions Examples

Example 2 medium

Evaluate [formula] when [formula].

Example 3 easy

Simplify [formula].

Example 4 medium

Write an algebraic expression for: 'triple a number, then subtract 4.'

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