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)
6*d+1 = -71 // + 71
6*d+1+71 = 0
6*d+72 = 0 // - 72
6*d = -72 // : 6
d = -72/6
d = -12
d = -12
| 8-7w=-20 | | -2m+1=-11 | | 5+7a=5 | | -2+5t=13 | | -2+2d=-6 | | 365,24219=365+1/4-x/400 | | xy+x+y=1 | | 3w-9=-3 | | -2a-3=9 | | 4m+5=13 | | 10+6m=10 | | 2n-8=-8 | | (3x+2)+(2x+1)+y=33 | | -1+5b=9 | | -7w-3=-3 | | 2a-5=-21 | | 2w-1=21 | | 1+6a=-47 | | sin(8x)+sin(2x)=0 | | 5w+4=-1 | | 9+7m=-5 | | -6t-2=4 | | -6t+5=23 | | 6b+9=57 | | -3m+2=-7 | | 6+5m=26 | | 7+6w=-59 | | 5w+10=-15 | | -7t-8=-22 | | 9-6n=-33 | | 2t^3+9t^2-5t= | | 2+6t=-28 |