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4 February, 23:20

What is the answer to:

x + y = 4

Y = x+4

Using elimination

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Answers (1)
  1. 4 February, 23:40
    0
    X + y = 4

    y = x + 4

    x + (x + 4) = 4

    y = x + 4

    2x + 4 = 4

    y = x + 4

    2x = 4 - 4

    y = x + 4

    x = 0

    y = 0 + 4

    x = 0

    y = 4
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