If you wanted to eliminate the y variable by adding the two equations in the following system, what could be your first step?
2x − 4y = 6
3x − y = 12
Add the two equations together
Multiply the first equation by −4
Multiply the second equation by −4
Multiply the second equation by 4

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Well, what are you having trouble with?

wat to do first

Well, you want to make it so if you add the two equations y disappears...

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