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11 October, 14:39

15x + 31y = - 3

X = - y + 3

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Answers (1)
  1. 11 October, 18:01
    0
    Step-by-step explanation:

    x+y=3

    x=3-y

    15 (3-y) + 31y = -3

    45-y+31y=-3

    -y+31y = -3-45

    30y:30=-48:30

    y=-1,6

    x+y=3

    x+-1,6=3

    x-1,6=3

    x=3+1,6

    x=4,6
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