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18 March, 17:22

X+y=15

4x+4y=10

what is the answer to this using either substitution or elimination?

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Answers (1)
  1. 18 March, 17:39
    0
    Using substitution:

    x=-y+15

    plug that into the other equation

    4 (-y+15) + 4y=10

    -4y+60+4y=10

    -4y and 4y cancel out to her 60=10 which means there is no solution
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