Mathematics
Mathematics, 02.10.2020 14:01, ej02duncan1

X+y+ z = 1
3х - у - z = 4
х+ 5y + 5z = -1

answer
Answers: 2

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Do you know the correct answer?
X+y+ z = 1
3х - у - z = 4
х+ 5y + 5z = -1...

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