If it's not what You are looking for type in the equation solver your own equation and let us solve it.
b in (-oo:+oo)
-111/35 = 2*b-((1/5)*b)+3/7 // - 2*b-((1/5)*b)+3/7
(1/5)*b-(2*b)-111/35-(3/7) = 0
(1/5)*b-2*b-111/35-3/7 = 0
-9/5*b-18/5 = 0 // + 18/5
-9/5*b = 18/5 // : -9/5
b = 18/5/(-9/5)
b = -2
b = -2
| 99/2=6w-w-1/2 | | 1/2t+8+3t=-47/2 | | 4/7m-7-1/2m=-103/14 | | 5-7b+2/3b=85/36 | | 1-7/2x=6 | | 1/2-b-2/7b=-2/5 | | 10-2/5d+7d=182/5 | | -7+4/5k+2k=-63/10 | | 5+1/2d+7d=35/4 | | -4/7a+2/7+a=19/28 | | 4777/70=7d+4/7d+1/10 | | 32=4m+5m+5 | | 5/7n+1+2n=64/7 | | -8-4/5d+d=-48/5 | | 3w+10+3w=152/11 | | -7w-7/8+w=-203/40 | | 1/8-w+4w=77/40 | | -8/9-1/4x-7x=2839/36 | | -265/3=-2t-6t-1/3 | | 7a+3/10-5a=223/10 | | b-1+2/5b=72/5 | | -46/55=2d-2/5d-2 | | 2/3a-1+4a=2/5 | | -1-1/2n+5n=44 | | -4/7-1/2b-b=-85/112 | | 12/5=-4x+5x+2/5 | | -5n-3+1/3n=-107/3 | | 291/14=-1/2k-4/7k+9 | | -7/10+2b-1/5b=191/10 | | 19/3=4m-7m+8 | | -141/5=-6d+1/5d+4/5 | | 58/21=-1/6a+2/7a+3 |