
Elimination method review (systems of linear equations)
The elimination method is a technique for solving systems of linear equations. This article reviews the technique with examples and even gives you a chance to try the method yourself.
Systems of equations with elimination - Khan Academy
Solve systems of equation with one-step elimination (e.g., x-values or y-values cancel each other out).
Solving systems of equations by elimination (old) - Khan Academy
When solving a system of equations using elimination, when you have to multiply one of the equations to get rid of the x or y, how do you know which one you want to get rid of first?
Elimination strategies (video) | Khan Academy
Your life isn't a pre-planned route you follow, where one of the steps is using this elimination strategy. Instead, learning something is like unlocking a door that you can then walk through.
Systems of equations with elimination (and manipulation)
In some cases, we need to slightly manipulate a system of equations before we can solve it using the elimination method. See how it's done in this video.
Systems of equations with elimination: King's cupcakes
Sal uses simple elimination to figure out how many cupcakes are eaten by children and adults.
Systems of equations with elimination: x-4y=-18 & -x+3y=11
Elimination works because it eliminates one of the variables, we can solve the equation only if there is 1 variable and not 2 variables.
Elimination strategies (practice) | Khan Academy
Practice recognizing effective strategies when using elimination to solve a system of equations.
Systems of equations with elimination challenge - Khan Academy
Solve systems of equation with multi-step elimination (e.g., a manipulation is needed in order for x-values or y-values to cancel each other out).
Systems of equations with substitution - Khan Academy
Learn to solve systems of equations using substitution with interactive exercises and step-by-step guidance on Khan Academy.