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Mathematics 13 Online
OpenStudy (anonymous):

What single step would eliminate the x variable in the system of equations? x − 2y = 7 3x − y = 15 Multiply the first equation by −3 Multiply the second equation by 7 Multiply the first equation by 2 Multiply the second equation by 5

OpenStudy (anonymous):

It would be the first one because if you add -3x and +3x you get 0, eliminating the x variable

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