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12 November, 14:10

6. 5x + 2y = - 3

3x + 3y = 9

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Answers (1)
  1. 12 November, 15:54
    0
    x=-3

    y=6

    Step-by-step explanation:

    5x+2y=-3 3x+3y=9

    3x=9-3y

    x=3-y

    5 (3-y) + 2y=-3

    15-5y+2y=-3

    18=3y

    6=y

    x=3-y

    x=3-6

    x=-3
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