If it's not what You are looking for type in the equation solver your own equation and let us solve it.
k in (-oo:+oo)
7*k+6/7 = k-354/77 // - k-354/77
7*k-k+6/7-(-354/77) = 0
7*k-k+6/7+354/77 = 0
6*k+60/11 = 0 // - 60/11
6*k = -60/11 // : 6
k = -60/11/6
k = -10/11
k = -10/11
| a^2=6a | | 3/5a-1/5=-131/10-5/6a | | -3/8+5/6m=m+13/8 | | -d+1/2=-4d+11/10 | | -4/7+n=7n+248/7 | | 3/7-5x=-5/6x-139/84 | | 2x+9=21-2/5x | | -6d-2/5=28/5-3d | | 5/6-3w=1/3w-215/6 | | -8+2/3b=-4b-94/3 | | -1/3+5/6d=3d-5/2 | | -1/4a-4/7=5a-4/7 | | 2n+1=-2n-5/3 | | 5b+1=-17/7+b | | 4/5+2m=-2/3m+9/5 | | 2/3+3d=7d-82/3 | | 2d+1/6=-59/6+7d | | 5+4a=-2/3a+169/3 | | 1/2+3d=-3/5d-103/10 | | a+5/9=4/7a-100/63 | | 6n+3=n+48 | | 2/5-6d=-3/5d-59 | | -4/9-3n=-6n+34/45 | | -1/6+2/7b=-5/7b+11/6 | | 10+5/6m=6m+401/6 | | 2/3n+2/5=n+1/2 | | -4/5m+1=m-1/20 | | -1/4+7a=2a+179/4 | | -3/7a-1=17/28-3/4a | | 4t+6=152/77-3/7t | | 5m-1/2=-2/3m-151/30 | | 4/5+6/7d=-5d-2022/35 |