Addition equations

Math

Definition

Simple one-step equations where a number is added to the variable, solved by subtracting that number from both sides. These are foundational algebra equations that introduce the concept of inverse operations.

How It Works

  1. Identify the number being added to the variable.
  2. Subtract that number from both sides of the equation.
  3. Simplify to find the value of the variable.

Examples

  • x + 7 = 12 → subtract 7 from both sides → x = 5
  • n + 3.5 = 10 → n = 6.5

Related Terms

Subtraction equations Multiplication equations Division equations Multi-step equations

Study This Concept

Practice addition equations with free review games in these units:

Pre-Algebra Unit 6: One-Step Equations