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)
2-6*k = -(7*k)-7 // + -(7*k)-7
7*k-6*k+2+7 = 0
k+9 = 0 // - 9
k = -9
k = -9
| x+15=-17 | | 7d-8=-6d+18 | | 7n+2=-53-4n | | 7m-4=2m-24 | | -9-2w=6w+15 | | 4-7t=-5t+24 | | 2k+6=7k+31 | | -3x-2=4x+33 | | 2w-6=-6-w | | 5w+4=0+7w | | x+4=5x-32 | | 2d+7=-6d+103 | | 6x+1=-5x+45 | | 8+3w=-5w-40 | | 2w+8=7+3w | | 9+w=6w-51 | | -3+5k=7k-1 | | 6b+8=-7b+8 | | 6d-10=30-2d | | -4k+3=43+6k | | 5d-1=32-6d | | -3b+5=-50+2b | | 2a-1=8+a | | -5w+9=7w+9 | | -2+2d=-7d-38 | | -4x+9=39-7x | | -10-4d=5d-118 | | 5+d=7d-49 | | 7a-10=-10-4a | | 2-2m=-m+2 | | 2+n=-6n+16 | | 5x+2=32-x |