
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.
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?
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.
Substitution method review (systems of equations) - Khan Academy
The substitution method is a technique for solving a system of equations. This article reviews the technique with multiple examples and some practice problems for you to try on your own.
Elimination strategies (video) | Khan Academy
Which of these strategies would eliminate a variable in the system of equations? The first choice says multiply the bottom equation by two, then add the equations.
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).
Inverting a 3x3 matrix using Gaussian elimination - Khan Academy
Sal explains how we can find the inverse of a 3x3 matrix using Gaussian elimination.
Systems of equations with elimination: -3y+4x=11 & y+2x=13
Every time you multiply or divide a term of an equation, you have to do the same to the other terms, and to the other side of the equation. In your example (6/3)x+2x=13, we would do the …
Solving linear systems with 3 variables (video) | Khan Academy
You would be on your way to get the correct value for y if you chose your method. There are many approaches to eliminating the variable terms when solving using the elimination system.
Systems of equations with elimination: x-4y=-18 & -x+3y=11
Now what we're gonna do is find an X and Y pair that satisfies both of these equations. That's what solving the system actually means. As you might already have seen, there's a bunch of X …