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11 December, 00:28

Solve by using substitution. SHOW YOUR WORK. y=-2x - 1

y = 8x + 19

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Answers (1)
  1. 11 December, 00:53
    0
    Answer: x = - 2; y = 3

    Step-by-step explanation:

    y=-2x - 1

    y = 8x + 19 -

    replacing "y"

    -2x - 1 = 8x + 19

    -2x - 8x = 19 + 1

    -10x = 20

    x = 20/-10

    x = - 2

    y=-2x - 1

    y = - 2. (-2) - 1

    y = 4 - 1

    y = 3
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