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+3/7 = -135/28 // + -135/28
6*d+3/7-(-135/28) = 0
6*d+3/7+135/28 = 0
6*d+21/4 = 0 // - 21/4
6*d = -21/4 // : 6
d = -21/4/6
d = -7/8
d = -7/8
| -1/2k-1/2=-5/7 | | 2/5w+7=387/55 | | -5x+1/5=-47/15 | | 4/5a+7=34/5 | | 4b+1/4=129/4 | | X-2*x+10*2=12 | | -7/8+5t=-7/8 | | -3/5w-3/10=-39/10 | | -1/6m+2/3=15/22 | | w-9/10=-89/10 | | -3/7k+2/3=13/33 | | 4/7k+3/8=-17/168 | | 5m+7/9=502/9 | | -2/5-4/5m=-2/5 | | 4k-1/2=-7/2 | | 7+w=-3 | | 8+6w=80/7 | | 4t-8=-7 | | 1/5-3w=17/10 | | k+8=20 | | 3/8+7m=-165/8 | | 4n-2=-14 | | 2-y=23 | | 7w+9=51 | | 5x+1=41 | | -2/3w+9=25/3 | | 1+6n=-4/5 | | 10+6/7d=377/35 | | -4/5d+7/8=121/120 | | 8x-3=7x-12 | | 3/5+2a=23/5 | | 2a-2/9=71/45 |