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Serhud [2]
3 years ago
12

-x + 3y − z = -9 x − 2y + 2z = 8 2x − y + z = 7

Mathematics
1 answer:
evablogger [386]3 years ago
3 0

Answer:

(x,y,z)=(2,-2,1)

Step-by-step explanation:

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