Instructional Video4:45
Curated Video

Solving Systems of Equations by Elimination with Opposite Coefficients

K - 5th
In this lesson, students will learn how to solve systems of equations using the elimination method when opposite coefficients are present. The video explains the concept of opposite coefficients and how they allow us to cancel out...
Instructional Video3:58
Curated Video

Solving Systems of Linear Equations by Elimination

K - 5th
In this lesson, mathematicians will learn how to solve systems of two linear equations using the elimination method. By manipulating the equations and eliminating variables, students can find the values of each variable and determine the...
Instructional Video15:57
Why U

Algebra 41 - Using Systems of Equations Versus One Equation

12th - Higher Ed
When should a system of equations with multiple variables be used to solve an Algebra problem, instead of using a single equation with a single variable?
Instructional Video10:20
Why U

Algebra 44 - Solving Systems of Equations in Three Variables

12th - Higher Ed
Systems of three linear equations in three variables can be solved using the same techniques of substitution and elimination used to solve systems of two linear equations in two variables.
Instructional Video7:01
Curated Video

Solving Systems of Linear Equations by Substitution

K - 5th
In this video, the teacher explains how to solve systems of linear equations using substitution. They provide examples and walk through the steps of substituting variables to find the solution. The video also emphasizes the importance of...
Instructional Video3:44
Let's Tute

Pair Linear Equations problem solving with Cross Multiplication Method

9th - Higher Ed
This video is about pair of linear equation problem solving based on Cross multiplication Method
Instructional Video10:48
Why U

Algebra 37 - Solving Systems of Equations by Elimination

12th - Higher Ed
Systems of two equations in x and y can be solved by adding the equations to create a new equation with one variable eliminated. This new equation can then be solved to find the value of the remaining variable. That value is then...
Instructional Video5:01
Curated Video

Estimating Solutions to Systems of Equations by Graphing in Standard Form

K - 5th
In this video lesson, the teacher explains how to estimate solutions to systems of equations by graphing when both equations are in standard form. They demonstrate how to find the x and y-intercepts of each equation and graph them on a...
Instructional Video7:29
Curated Video

Linear and Quadratic Expressions and Equations: Understanding the Difference

K - 5th
In this video, the teacher explains the difference between linear and quadratic equations and how to model different situations using each. They provide examples of linear expressions and equations, as well as quadratic expressions and...
Instructional Video15:28
Why U

Algebra 27 - Solving Problems with Linear Equations

12th - Higher Ed
How do we create linear equations to solve real-world problems? This video explains the process.
Instructional Video6:30
Curated Video

Finding the Number of Solutions to Linear Equations: Using Tables and Graphs

K - 5th
In this video, the teacher explains how to determine the number of solutions to a pair of linear equations using tables and graphs. The students are shown examples and taught to analyze the differences in values and the intersections of...
Instructional Video4:27
Curated Video

Solving Systems of Linear Equations by Substitution

K - 5th
In this lesson, students will learn how to solve a system of linear equations by substitution. They will understand how to replace one variable with another in order to simplify the equations and find the values of the variables.
Instructional Video4:20
Curated Video

Solving Systems of Linear Equations by Substitution

K - 5th
In this video, mathematicians learn how to solve systems of two linear equations using the substitution method. The instructor explains the concept using real-life examples, such as ticket prices and fruit costs. By substituting values...
Instructional Video5:01
Curated Video

Estimating Systems of Equations by Graphing

K - 5th
In this lesson, we will learn how to estimate systems of equations by graphing when one equation is in slope intercept form and the other equation is in standard form. We will review the different forms of linear equations and how to...
Instructional Video3:03
Curated Video

Solving Systems of Linear Equations with Infinitely Many Solutions

K - 5th
In this video, mathematicians learn how to solve systems of two linear equations with infinitely many solutions by graphing and finding the slopes of the lines. The video explains that when the two equations represent the same line, any...
Instructional Video5:01
Curated Video

Solving Systems of Equations Algebraically by Substitution

K - 5th
In this lesson, students will learn how to solve systems of equations algebraically by substitution. The video explains the concept of substitution and demonstrates how to substitute values into equations to find the solutions.
Instructional Video8:35
Curated Video

Representing Constraints on Solutions: Systems of Linear Equations

K - 5th
This video explains how to represent constraints on solutions by writing systems of linear equations. It provides examples and walks through the process of solving these equations using different methods such as graphing, tables, and...
Instructional Video5:24
Curated Video

Solving Systems of Linear Equations Using the Addition Elimination Method

K - 5th
In this video, the teacher explains how to solve a system of linear equations using the addition elimination method. They demonstrate the process step by step and provide examples to illustrate the concept. By following this method,...
Instructional Video9:06
Curated Video

Exploring Reflections in Linear Equations

K - 5th
In this lesson, students will learn about reflections in linear equations. They will explore how the functions F of X and G of X are alike and different, focusing on the slope and Y-intercept. Through examples and a table of values,...
Instructional Video7:47
Curated Video

Identifying the Value of K in Translations

K - 5th
In this video, students learn how to identify the value of K in translations by exploring different representations of linear equations. They are taught that K represents a constant value in the algebraic representations of...
Instructional Video4:07
Khan Academy

Example 2: Variables on Both Sides

8th - 10th
Sal offers an example showing how to manipulate numbers on either side of the equal sign to isolate the variable and solve the equation.
Instructional Video3:48
Khan Academy

Parallel Lines From Equation, Mathematics I, High School Math

7th - 9th
Here is a fairly basic video that uses three equations, each written in slope-intercept form, to determine whether the lines are parallel. Sal graphs each equation on the same coordinate plane to show how their slopes compare. The video...
Instructional Video7:56
Khan Academy

Writing Equations in All Forms, Algebra I

7th - 9th
Given two points on a line, this video shows how to write the linear equation in point-slope, slope-intercept, and standard forms. First, Sal reviews each of these forms, then calculates the slope, writes the equation in point-slope...
Instructional Video3:02
Khan Academy

Graphing a Line in Slope Intercept Form

7th - 9th
In this short video, Sal shows how to graph a line in slope-intercept form.