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-(2*d) = -2 // + 2
2-(2*d)+6 = 0
2-2*d+6 = 0
8-2*d = 0 // - 8
-2*d = -8 // : -2
d = -8/(-2)
d = 4
d = 4
| 9+2k=17 | | 3+7n=17 | | -6a+4=22 | | -6k+6=18 | | 8+6b=32 | | 10+6d=-44 | | 2y+7x=15 | | -6d-8=-8 | | 10-5n=-15 | | X^3+3x^2=9x | | (18+20*x)/(x+1)=19.88 | | 3+2n=17 | | (18+20*x)/x=19.88 | | -5k-3=-18 | | 2a-3=-11 | | 1-4a=5 | | 4b+5=9 | | 2b+2=20 | | 5b-8=-43 | | 2w-4=16 | | 6t+8=-52 | | -5t-4=-39 | | -4n+7=-41 | | -5+7a=44 | | -4b+7=31 | | -3k+6=-30 | | 5/9=n+1/3 | | (8-u)(2u-5)=0 | | 2y^4-14y^2+2=0 | | -2w+1=-23 | | 10+2m=14 | | 3m+5=-31 |