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18 September, 16:10

System by Substitution

-3x-3y = - 12

Y=0

+4
Answers (1)
  1. 18 September, 16:20
    0
    Substitute the 0 in for y:

    -3x - 3 (0) = - 12

    -3x - 0 = - 12

    -3x = - 12

    Divide by - 3:

    -12/-3 = 4

    Answer:

    x = 4
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