If it's not what You are looking for type in the equation solver your own equation and let us solve it.
d in (-oo:+oo)
4 = d+1 // - d+1
4-d-1 = 0
3-d = 0 // - 3
-d = -3 // * -1
d = 3
d = 3
| 6+k=6 | | 21=m+10 | | -63x^2-23x+56= | | 7k=-84 | | -9+t=-8 | | 9+w=11 | | -4+w=-2 | | n+10=-1 | | 2.3/3.8 | | 7+m=16 | | b-3=-1 | | 2d=20 | | a-9=-8 | | 5y-3x+1=0 | | 6x^2+kx-50=0 | | -4t=-24 | | 9+m=20 | | d-6=-6 | | d+10=20 | | -5t=-5 | | -3=k-5 | | 9=n-3 | | m+9=19 | | d+5=16 | | b+5=9 | | b/2=-2 | | 7+n=8 | | 4x(3+4)= | | w+6=-5 | | w+7=-3 | | 4+w=14 | | 5+k=7 |