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22 August, 02:41

Consider the system of linear equations.

7x+16y=-2

9x-4y=22

To use the linear combination method and addition to eliminate the y-terms, by which number should the second equation be multiplied?

A. - 4

B. - 1/4

C. 1/4

D. 4

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Answers (1)
  1. 22 August, 02:50
    0
    By 4 becuase this will change the - 4y to - 16y, then adding the 2 equations will eliminate y.

    D
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