Math
Subtraction equations.
Definition
One-step equations solved by adding the same number to both sides to isolate the variable. These are basic equations where a number is subtracted from the unknown.
How it works · 3 phases
Step by step.
- Identify the number being subtracted from the variable.
- Add that number to both sides of the equation.
- Simplify to find the value of the variable.
Examples
Real-world.
- 1 x − 7 = 12 → add 7 to both sides → x = 19
- 2 y − 3.5 = 10 → y = 13.5