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27 September, 04:50

Which of the following are possible ways to eliminate a variable by multiplying first?

-x + 4y = 5

9x - 3y = 21

A. Multiply the first equation by 3 and the second equation by 4.

B. Multiply the first equation by 4 and the second equation by 3.

C. Multiply the first equation by 3 and the second equation by 9.

D. Multiply the first equation by 9 and the second equation by 4.

E. Multiply the second equation by 9.

F. Multiply the first equation by 9.

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Answers (1)
  1. 27 September, 05:14
    0
    A

    Step-by-step explanation:

    The answer is A nd i'm 100% sure
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