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6 October, 13:42

9x + 7y = 10

7x + 7y = 14

+1
Answers (2)
  1. 6 October, 13:46
    0
    Y=4/7

    x=4/9

    this is the answer
  2. 6 October, 13:56
    0
    Multiply the second row by - 1 to cancel out the 7x.

    9x+7y=10

    -7x-7y=-14

    2x=-4

    x=-2

    9 (-2) + 7y=10

    -18+7y=10

    7y=28

    y=4
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