1. Same thing to both sides of equations
The example of a scale where we try to achieve balance helps to explain why we do the same thing to both sides of an equation.
2. Representing a relationship with an equation
Equations are about relationships (no, not girlfriends and boyfriends!) between the two sides of the equation. Let's again use a scale example to help us understand.
3. One-step equations intuition
This equation can be simplified through a single step to solve for the variable. Can you help?
4. One-step equations intuition example
To find the value of a variable, you sometimes have to get it on one side of the equation alone. To do that, you'll need to do something to BOTH sides of the equation. Watch. We'll explain why we do this.
5. DEPRECATED One-step equation intuition
Explore why we do the same things to both sides of an equation.
6. One-step addition & subtraction equations
Learn how to solve one-step addition and subtraction equations by adding or subtracting the same thing from both sides of the equation.
7. Dividing both sides of an equation
Let's get a conceptual understanding of why one needs to divide both sides of an equation to solve for a variable.
8. Intro to two-step equations
Here's how we solve a two step equation. It begins with the concept of equality: what we do to one side of the equation must be done to the other.
9. One-step division equations
Let's ease into this, shall we? Here's an introduction to basic algebraic equations of the form ax=b. Remember that you can check to see if you have the right answer by substituting it for the variable!
10. One-step multiplication equations
Remember that what you do to one side, you have to do to the other. Will you multiply or divide both sides to dump the fraction, x/a? Let's do it together.
11. One-step multiplication & division equations
Practice solving equations in one step by multiplying or dividing a value from both sides.
13. Simple equations: examples solving a variety of forms
Some quick examples to practice solving a variety of one step equations. All 4 operations (add, subtract, multiple, divide) are paired with variables.
14. One-step addition & subtraction equations
Practice solving equations in one step by adding or subtracting the same value from both sides.
15. Two-step equations intuition
This example demonstrates how we solve an equation expressed such: ax + b = c. It's a little more complicated than previous examples, but you can do it!
16. Two-step equations with decimals and fractions 2
Let's practice some two step equations, some of which require merging terms and using the distributive property.
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This equation can be simplified through a single step to solve for the variable. Can you help? Created by Sal Khan.