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7 June, 13:37

Solve the system of equation by graphing

-3x-2y=6

3x-y=12

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Answers (1)
  1. 7 June, 14:50
    0
    -3x - 2y = 6

    3x - y = 12

    -y = 18

    -1 - 1

    y = - 18

    -3x - 2y = 6

    -3x - 2 (-18) = 6

    -3x + 36 = 6

    - 36 - 36

    -3x = - 30

    -3 - 3

    x = 10

    (x, y) = (10, - 18)
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