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Mathematics, 16.12.2021 05:30 diawia

Which of the following are possible ways to eliminate a variable by multiplying first? x + 2y = 1
4x - 7y = 0

A. Multiply the first equation by 7 and the second equation by 2

B. Multiply the second equation by 4

C. Multiply the first equation by 4 and the second equation by 2

D. Multiply the first equation by 4

E. Multiply the first equation by 2 and the second equation by 7

F. Multiply the first equation by 7 and the second equation by 4

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