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)
-52 = 8-6*k-(4*k) // - 8-6*k-(4*k)
4*k-(-6*k)-52-8 = 0
6*k+4*k-52-8 = 0
10*k-60 = 0 // + 60
10*k = 60 // : 10
k = 60/10
k = 6
k = 6
| 7m+8+m=88 | | 10-5k+6k=4 | | 8-5m-6m=140 | | -10+4m+2m=44 | | 2+6w-2w=-6 | | 6-5n+n=-42 | | -107=-4m-7m-8 | | 25=n+6n+4 | | 39=6w+w-3 | | -7-3b-6b=38 | | -1+4k-k=2 | | 2-5m-5m=-88 | | 5+5x-x=9 | | -15=6m+m+6 | | -4b-3+7b=18 | | 2=2a-4a-4 | | -6t-4-2t=-4 | | -7+4t-3t=-5 | | 1+4w+w=26 | | 10+5m+4m=-98 | | 7k+6+6k=-98 | | 35=-7t+4t-1 | | 7d+10+3d=110 | | -6w+7+4w=5 | | -k+7-7k=-17 | | -2d+3+7d=43 | | 5d+2+2d=86 | | 1+6k+3k=109 | | -6m+5-2m=93 | | 2m+4-6m=-44 | | 6-6a+3a=42 | | 1=3d+d-7 |