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niduj1234

  • 3 years ago

solve the linear system using elimination x+y=2 2x +7y=9

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  1. nphuongsun93
    • 3 years ago
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    x + y = 2 times 2 -> 2x + 2y = 4 2x + 2y = 4 - 2x + 7y = 9 --------------------- -5y = -5 and so on

  2. niduj1234
    • 3 years ago
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    oh

  3. niduj1234
    • 3 years ago
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    but its wrong

  4. niduj1234
    • 3 years ago
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    its (1,1)

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