noobieplayerxd
12.11.2020 •
Mathematics
X+2y-z = 9
-2x+y+z= 1
2x-y+2z= -5
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Ответ:
Hello! 27
Step-by-step explanation:
3 × 3 = 9
9 × 2 = 18
9 + 18 = 27 therefore the area is 27 hope that helps!