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)
4-7*b = -3/8 // + -3/8
4-7*b-(-3/8) = 0
3/8-7*b+4 = 0
35/8-7*b = 0 // - 35/8
-7*b = -35/8 // : -7
b = -35/8/(-7)
b = 5/8
b = 5/8
| 4x^2-10x+6/2x^2+x-3 | | 4(8x+4)+6(7x+6)=-4 | | 5w+1=-13/7 | | -7+5w=3 | | 5/7d+2=33/14 | | 4+5/7k=199/56 | | 7b+8=102/11 | | -5n-7=-43/9 | | 7+3/7m=79/7 | | 10n+2=7n+24 | | 20=-23.944+0.199x+-0.00008x^2 | | 1+1/3n=10/9 | | 2/3n-4=-20/3 | | 2m+3=7/6 | | 5w+8=131/12 | | 6a+7/10=67/10 | | 2/3x+1=9/7 | | 167-6x=39x+17 | | 5/7k+9=78/7 | | -2/3b-3/10=-63/10 | | b-4=-29/6 | | 2d-3=7 | | 5+3b=29 | | -2/3d+8=101/12 | | 4(h+1)-(2h+3i)= | | (4x-3)(x+7)=(x-9)(1-2x) | | 4x-1/2=53/22 | | 6+7n=-57 | | 1/6+5/6d=1 | | 2+5d=4 | | 3t-1=-1/2 | | -1/5m+3/8=19/8 |