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14 March, 18:00

5x-2y=-13

2x+y=11

Fine the solution using the substitution method.

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Answers (1)
  1. 14 March, 19:36
    0
    Y = 11-2x

    Substitute in:

    5x-2 (11-2x) = - 13

    5x-22+4x=-13 (combine like-terms)

    9x-22=-13

    9x=-13+22

    9x=9

    x=1
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