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)
5*d+1 = 31 // - 31
5*d-31+1 = 0
5*d-30 = 0 // + 30
5*d = 30 // : 5
d = 30/5
d = 6
d = 6
| 6-5n=-9 | | 21/2-3y=15 | | 7x+5+x=3+4x-18 | | -6x+5=-61 | | -3n+2=-7 | | 5a-9=-44 | | 2n-4=-4 | | -3m+9=-6 | | -9+7m=47 | | 8+3t=-22 | | M/0.03=-5.1 | | -7b-2=-86 | | 2+5b=47 | | 1+6k=25 | | 10+3t=-26 | | 4w+8=12 | | -6x+10=4 | | 6+6m=-6 | | 10+3n=46 | | -6t-7=59 | | -3n+3=-15 | | 7m+4=-59 | | -9+4t=27 | | 9-2d=-5 | | -3n-9=21 | | 7n-5=58 | | 4+4x=36 | | 7d+8=43 | | 4y-6=-6 | | -4d-10=-58 | | -6+4m=-34 | | 8+7b=15 |