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)
-4 = k+3 // - k+3
-k-4-3 = 0
-k-7 = 0 // + 7
-k = 7 // * -1
k = -7
k = -7
| -4=d-5 | | -4=a+4 | | -4=3m-m-3 | | -4=-5x+7x-6 | | -4-x+2/3x=-37/9 | | -4-w-2w=-32/5 | | -4-b=-53/12 | | -4-a-7a=76 | | -4-7d=4d-125 | | -4-6w=4w+6 | | -4-6n-1/5n=-206/5 | | -4-6d=-8 | | -111x-10x=9x+22 | | -4-6d+1/5d=-78/5 | | -4-5w=-2/3 | | -4-5m=-56/9 | | -4-4m+2/7m=-149/21 | | 6-2/3x=-8 | | -4-4d=-8 | | -4-4d=-2 | | -4-4/5x=-196/55 | | -4-4/5w+3/5w=-201/50 | | -18x-5x=12-10x | | -4-3m=-4 | | -4-3d=-7 | | -4-3/5x=1/5x-52/11 | | -4-3/5n=-2/5 | | -4-3/4x-x=-25 | | -4-3/4m=5 | | -4-2w-1/2w=-43/2 | | -4-2m=-50/11 | | -4-2a-3/5a=6/5 |