Using Elimination to Solve Systems

Brian McLogan October 1, 2012
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Brian McLogan

@brianmclogan

About

I was that student that sat in the back of the classroom bored out of mind, frustrated & not understanding what the teacher was saying. I struggled learning math but in the pursuit to earn my degree, I learned a lot of what it takes to not only absorb the material, but be successful in class. This channel is all about sharing those experiences with you to get you on your path to success. I teach math from the perspective of the struggling student because that was me & it could be you, too. My videos are short, to-the-point and cover everything from Algebra 1 through Calculus. I have a ton of content to share with you & hope you find them useful in whatever class you are taking!

Video Description

👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be equal in all the equations that make up the system, in order to eliminate the variable using subtraction (or addition as the case may be). The coefficients can be made equal by multiplying the entire equation with a number which when multiplied to the coefficient of the variable to be eliminated gives the LCM of the coefficients of the variable to be eliminated in all the equations. Then we solve for the remaining variable(s). After we have obtained the solution{s} for the remaining variable(s), we substitute the obtained solution into any of the original equations to obtain the solution of the eliminated variable. 👏SUBSCRIBE to my channel here: https://www.youtube.com/user/mrbrianmclogan?sub_confirmation=1 ❤️Support my channel by becoming a member: https://www.youtube.com/channel/UCQv3dpUXUWvDFQarHrS5P9A/join 🙋‍♂️Have questions? Ask here: https://forms.gle/dfR9HbCu6qpWbJdo7 🎉Upcoming Livestreams: https://www.youtube.com/user/MrBrianMcLogan/community Organized Videos: ✅Solve a System of Equations Algebraically https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMq2Oa36RF7hW0Zz86wC4Krt ✅Solve a System of Equations Using Substitution | Easy https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMrGE-w4_gFa2fTsQqsm2Wax ✅Solve a System of Equations Using Substitution | Hard https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMqdqpDChzcP4XOAMohu-lyS ✅Solve a System of Equations Using Substitution | Learn About https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMqp6_1IonPYJ3DbKPVy11v5 ✅Solve a System of Equations Using Elimination | Learn About https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMr0MOQzwEe8nrQGfOQnpwd ✅Solve a System of Equations Using Elimination | Easy https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMolnC3-PMHsnsR6MDtGKdgM ✅Solve a System of Equations Using Elimination | Medium https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMo4pWWVhqwpndkqj2gi58_P ✅Solve a System of Equations Using Elimination | Hard https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMr9vwB_4rGYne9YdfIULcxm ✅Solve a System of Equations Word Problem https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMr7bMMmNPXW26XO-pJrf1Z- ✅Solve a System of Equations With Three Variables https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMpJiU75Ns76Ys7KQjELrzm9 🗂️ Organized playlists by classes here: https://www.youtube.com/user/MrBrianMcLogan/playlists 🌐 My Website - http://www.freemathvideos.com Connect with me: ⚡️Facebook - https://www.facebook.com/freemathvideos ⚡️Instagram - https://www.instagram.com/brianmclogan/ ⚡️Twitter - https://twitter.com/mrbrianmclogan ⚡️Linkedin - https://www.linkedin.com/in/brian-mclogan-16b43623/ 👨‍🏫 Current Courses on Udemy: https://www.udemy.com/user/brianmclogan2/ 👨‍👩‍👧‍👧 About Me: I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips. Find more here: https://www.freemathvideos.com/about-me/ #Systemofequations #Algebraically #brianmclogan

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