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Mathematics 9 Online
OpenStudy (anonymous):

Select the best possible first step to solving the following system by first eliminating the y variable. 5x – 3y = 1 7x – 4y = 2 Multiply the first equation by 3 and multiply the first equation by 4. Multiply the first equation by –3 and multiply the second equation by –4. Multiply the first equation by –7 and multiply the second equation by 5. None of the above

OpenStudy (anonymous):

None of the above. You need to multiply the first equation by 4 and the second equations by 3

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