Ответ:
1)5x+3y=-6
2)-5x-4y=7
3)2x-1y=0
4)4x=2
5)-3y=-9
6)0=0
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Ответ:
1)5x+3y=-6
2)-5x-4y=7
3)2x-1y=0
4)4x=2
5)-3y=-9
6)0=0
6x-2y=-5 / /
x+0,5y=0 / /
3/4x-y=1 / /
-0,25x+y=1,5 / /