Ich versuch es mal (Bitte nachrechnen)
1 1 1 0 0 0 1
1 1 1 1 1 0 1 -1.Zeile
1 1 1 0 1 1 1 -1.Zeile
0 1 0 1 1 0 1
0 1 1 1 1 1 1
0 0 1 0 1 1 1
1 1 1 0 0 0 1
0 0 0 1 1 0 0 2. und 4´. Zeile tauschen
0 0 0 0 1 1 0
0 1 0 1 1 0 1
0 1 1 1 1 1 1
0 0 1 0 1 1 1
1 1 1 0 0 0 1
0 1 0 1 1 0 1
0 0 1 0 0 1 0
0 0 0 1 1 0 0
0 0 0 0 1 1 0
0 0 1 0 1 1 1 minus 3. Zeile
1 1 1 0 0 0 1
0 1 0 1 1 0 1
0 0 1 0 0 1 0
0 0 0 1 1 0 0
0 0 0 0 1 1 0
0 0 0 0 1 0 1 minus 5. Zeile
1 1 1 0 0 0 1
0 1 0 1 1 0 1
0 0 1 0 0 1 0
0 0 0 1 1 0 0
0 0 0 0 1 1 0
0 0 0 0 0 1 1
==> x6=1 x5+x6=0, also x5=1 ebenso x4=1
x3+x6=0 ==> x3= 1
x2+x4+x5=1 ==> x2 +1 +1 =1 also x2=1
x1 + 1 +1 =1 ==> x1=1