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)
5*d+9 = 31/4 // - 31/4
5*d-(31/4)+9 = 0
5*d-31/4+9 = 0
5*d+5/4 = 0 // - 5/4
5*d = -5/4 // : 5
d = -5/4/5
d = -1/4
d = -1/4
| 8-2/5n=208/25 | | -2/5m+4/5=26/5 | | 4m-8=-8 | | -1/4k+5/6=4/3 | | 1/3+33/4+5/7= | | 1/3a-5/9=-13/36 | | 10v^2-3v-18=0 | | -9+5a=-41/4 | | 3k-1/2=35/2 | | 1/5-3n=16/5 | | 1/3+5/7d=46/63 | | 3/5-6k=-357/5 | | 1/9+1/2d=-2/9 | | -2u^2-7u+7=0 | | 2/3a+2=46/21 | | 4x-5=-25/3 | | 5/9+6m=91/18 | | t+1/8=-5/24 | | 1/3b+1/2=-5/6 | | 7x+5/9=59/9 | | 3/7b+1=25/7 | | 14x-8=9x+10 | | 4t-10=-102/11 | | 2w+10=18 | | -4/9+1/3t=8/9 | | 3a-1=4/3 | | 5/8+5/6w=55/56 | | 7t+6=31/4 | | -6t+6=-66 | | 4w-10=-6 | | 2/9+5/7a=149/63 | | 5b+4/5=173/60 |