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Mathematics, 15.10.2019 20:20 sis2depoxd8mj

2x + y + z = 12
10.00 5x + 5y + 5z = 20
x - 4y + z = -21

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Answers: 1
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2x + y + z = 12
10.00 5x + 5y + 5z = 20
x - 4y + z = -21...
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