Multiply row 2 by 2, and insert it for row 2:
-1
-7
4
-1
-4
-7
...
Mathematics, 28.10.2020 21:40, xbeatdroperzx
Multiply row 2 by 2, and insert it for row 2:
-1
-7
4
-1
-4
-7
4
-2
8.
-4
1
6
3
-4
2 R2 R2
-2
30
8
-4
1
30
Answers: 3
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