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21 July, 00:33

Select all the statements that correctly describe the solutions to this system of equations?

2x-y = 0

x+y=9

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Answers (1)
  1. 21 July, 02:41
    0
    x + y = 9

    x = 9 - y

    2x - y = 0

    2 (9 - y) - y = 0

    18 - 2y - y = 0

    -3y = - 18

    y = 6

    x = 9 - y

    x = 9 - 6

    x = 3
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