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k in (-oo:+oo)
-7 = k+4 // - k+4
-k-7-4 = 0
-k-11 = 0 // + 11
-k = 11 // * -1
k = -11
k = -11
| m+2=4 | | b/5=7 | | 7t=35 | | 83/56=n+6/7 | | 5/9=d-4/9 | | a+18=7a+0 | | k-2/9=26/45 | | t+4=22/5 | | 7+m=84/11 | | a+2/5=7/5 | | w/-4=-2/3 | | 1+t=13/9 | | m+4=22/7 | | -6+w=-12 | | x+7/10=27/110 | | n/6=5/6 | | -5/9+k=-68/9 | | t-3=-32/9 | | w+1=-7 | | 5/9+x=-58/9 | | 7+w=31/4 | | -1/2w=-7/2 | | n+10=16 | | -5/6b=1/2 | | 1/2m=-6 | | x-7=-77/12 | | w/3=-3/4 | | 8+w=95/11 | | w-2=-9/7 | | 41/10=b+4 | | a+4=49/11 | | m+7/8=11/8 |