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29 November, 12:43

How do you solve this?

-x+y=7

6x+y=14

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Answers (1)
  1. 30 November, 02:17
    0
    Multiply the first equation by - 1 to use elimination method.

    x-y=-7

    6x+y=14

    7x=7

    x=1

    Plug this x value in.

    -1+y=7

    y=8

    Final answer: (1,8)
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