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)
(2/7)*d-(6*d)+3/4 = 1301/28 // - 1301/28
(2/7)*d-(6*d)+3/4-(1301/28) = 0
(2/7)*d-6*d+3/4-1301/28 = 0
-40/7*d-320/7 = 0 // + 320/7
-40/7*d = 320/7 // : -40/7
d = 320/7/(-40/7)
d = -8
d = -8
| -d+1+4/5d=9/10 | | 4t+1+6t=41 | | 5x+1+5x=121 | | 5t+1+5/6t=-137/3 | | -1/3n+1+6n=-7/10 | | 3x+5/9+5x=-211/9 | | 4a+1+1/2a=-13/8 | | -34/9=-5/6b+1/2b+2/9 | | -2/7=6/7m+2/7m+10 | | 5-1/3n+1/7n=241/49 | | 6d-1+d=55 | | 5-3a+2/3a=86/27 | | k+2+k=-18 | | 4/5b+4/5+5b=37/10 | | 5/9-b+2/3b=82/99 | | -123/20=-2/5a-6a+1/4 | | 4+2m-4/5m=256/55 | | 3x/5+x/2 | | (21x+1)=(14+4) | | w+2-2/3w=0 | | -38/5=m+1/2m-7 | | -1=-x-x-1 | | 5/6k+10-3/4k=61/6 | | 6x+1/2-2/7x=-793/14 | | 23=-4t+t+2 | | 7/8-4/5a-5a=-661/40 | | 557/8=2d+5d-3/8 | | 2/3+x+7x=26/3 | | 5a+1/2+7a=-215/2 | | 3/4d+2/3+2/7d=115/42 | | -1/6m-4+2m=43/3 | | 1/2+4k+2/7k=-653/14 |