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31 August, 16:02

Solve using substitution.

y = - 2

7x - 4y = 1

+2
Answers (2)
  1. 31 August, 18:04
    0
    Step-by-step explanation:

    7x-4 (-2) = 1

    7 x+8=1

    7 x=-7

    x=-1

    y=-2
  2. 31 August, 19:04
    0
    -1

    Step-by-step explanation:

    plug in

    7x-4 (-2) = 1
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