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k in (-oo:+oo)
k+7 = 15 // - 15
k-15+7 = 0
k-8 = 0 // + 8
k = 8
k = 8
| k+7/9=-83/9 | | d/3=4 | | t+7/10=77/10 | | 75/8=w+9 | | -1+n=-9/5 | | a-3/5=32/5 | | 1/3+a=14/33 | | -6=k-7 | | -19/2=x-9 | | x+4=13/4 | | 7/10+t=11/10 | | -1+k=9 | | d-2/9=43/9 | | w+5/8=53/8 | | a+3/4=43/4 | | b+3=9 | | w-5=-11/2 | | b+5/6=91/66 | | k-9/10=11/10 | | k-8=-8 | | w+2/5=53/45 | | t+3/8=35/8 | | 1+b=1 | | 3/10+m=83/10 | | x-1=-5/9 | | a^3=B^3 | | b-7=-22/3 | | a+2/3=5/3 | | -5/9+b=85/9 | | 8+n=9 | | -74/11=b-7 | | d+3/4=43/4 |