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11 October, 19:09

A few more math problem

solve each system by elimination

1. 7x+y=10

-7x-10y=26

2. 4x-2y=-14

3x-2y=-14

3. 6x+2y=20

-3x+3y=-30

4. - 5x+4y=-3

-9x-4=-30

5. - 9x+6y=27

-x+3y=10

6. 5x+y=-12

5x-7y=4

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Answers (1)
  1. 11 October, 21:52
    0
    x = 7

    y=10
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