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14 April, 13:42

Which is the solution to the system of equations?

y = 1/8x - 1

-5x + 4y = - 13

A. (0, - 1)

B. (8,0)

C. (1, - 7/8)

D. (2, - 3/4)

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Answers (1)
  1. 14 April, 14:12
    0
    D. (2, - 3/4)

    Step-by-step explanation:

    Using the substitution method:

    -5x+4 (1/8x-1) = -13

    -5x+0.5x-4=-13

    -4.5x/4.5=-9/4.5

    -x=-2

    x=2

    You are supposed to replace 2 in the first equation now but as there is no other option with x value of 2 D is the answer.

    If continued:

    -5 (2) + 4y=-13

    -10+4y=-13

    4y=-3

    y=-3/4
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