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24 September, 03:29

If x-y=2 and y=-2/3, find x

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Answers (2)
  1. 24 September, 04:19
    0
    1 and 1/3
  2. 24 September, 06:53
    0
    Step-by-step explanation:

    x - y = 2√3 given

    -y = - x + 2√3 subtract x from both sides

    y = x - 2√3 multiply both sides by - 1

    xy = 1 given

    x (x - 2√3) = 1 substitution

    x2 - 2x√3 = 1 distribute

    x2 - 2x√3 - 1 = 0 subtract 1 from both sides

    Can you solve for x then y?
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