Solving Equations with Addition and Subtraction
7th Grade•20 minutes
Learning Objective
I can solve one-step equations using addition and subtraction.
Key Concepts
In algebra, solving an equation means finding the unknown value or variable.
To solve for an unknown, you must get the variable by itself on one side of the equation.
Whatever you do to one side of the equation, you must do the same to the other side to keep the equation balanced.
Practice Questions
This lesson includes 3 practice questions to reinforce learning.
View questions preview
1. Solve for 'y': y + 12 = 25
2. Solve the equation: 30 = x - 15
3. Solve for 'z': 20 - z = 8
Educational Video
Algebra Basics: Solving Basic Equations Part 1 - Math Antics
mathantics