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)
8-2*d = 6 // - 6
8-2*d-6 = 0
2-2*d = 0 // - 2
-2*d = -2 // : -2
d = -2/(-2)
d = 1
d = 1
| -2d+8=20/7-5/7d | | -2d+6/7+1/2d=-177/14 | | 3(4)+4y=-12 | | -2d+6+7d=31/11 | | -2d+6+3/4d=-13/2 | | -2d+5-3d=35/4 | | -2d+3/10=223/10 | | 3(10)+4y=-12 | | 5x^2=-25 | | 3(5)+4y=-12 | | -2d+10=-2 | | -2d+1/8=-55/8-1/4d | | -2d+1/2=31/14 | | -2d+1/2-3d=-5/2 | | -2b=2 | | -2b=18 | | -2b=-8/5 | | -2b=-4/7 | | -2b=-2/7 | | -2b=-2/3 | | -2b=-14 | | -2b-8=-22/3 | | -2b-6=-8 | | -2b-4/9=-94/9 | | -2b-3/10=77/10 | | -2b-2/3=46/3 | | -2b-2/3=-5/3 | | -2b-2=-10 | | -2b-1/2=-37/2 | | -2b+8=62/7 | | -2b+7/10+7b=157/10 | | -2b+7=b-26 |