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3 November, 16:06

A student is trying to solve the system of two equations given below: Equation P: y + z = 6 Equation Q: 8y + 7z = 1 Which of the following is a possible step used in eliminating the y-term?

A. (y + z = 6) ⋅ - 8

B. (y + z = 6) ⋅ 7

C. (8y + 7z = 1) ⋅ 7

D. (8y + 7z = 1) ⋅ 8

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Answers (1)
  1. 3 November, 18:11
    0
    P: y + z = 6

    Q: 8y + 7z = 1

    A. This makes y = - 8Y which will eliminate the "y"'s when the equations are added.
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