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k in (-oo:+oo)
k-7 = -7 // + 7
k-7+7 = 0
k = 0
k = 0
| d-10=-4 | | M/5+4=-12 | | -15+2n=-9 | | 1+k=-1 | | -9+b=-19 | | 10+t=10 | | d+10=-2 | | 8+b=20 | | -6=d-3 | | m+4=11 | | 10+t=19 | | -6m=60 | | a/-7=-2 | | log(5)(3/4)/(3/8) | | d/-2=-7 | | -6=d+4 | | b+9=21 | | log(5)(3/4/3/8) | | 7=w-2 | | 8x^2-28x+29=0 | | 1+k/4=-9 | | 8x^2-28+29=0 | | 1+x=5-x | | y/3+2=10 | | 9+d=9 | | b+9=-3 | | w+5=15 | | -3k=21 | | b/7=-7 | | 9+t=-2 | | n+2=-2 | | -5w=-55 |