Solving Systems of Equations by Elimination. Created by Sal Khan.

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but what if you what cancel the +4y and the -4y

Everyone thumbs down this video if you hate math

lets try to get this vid to 300 dislikes

Why choose both equations with one cancelling out what happens when they DONT cancel out

Wait, what do you do when all the numbers in both equations are different

Im so confused and have a test about this tommorow ;-;

This didn’t taught me anything 😤

thank you sir.