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*k)-3 = -19 // + 19
19-(2*k)-3 = 0
19-2*k-3 = 0
16-2*k = 0 // - 16
-2*k = -16 // : -2
k = -16/(-2)
k = 8
k = 8
| 7m-6=-76 | | 3a-10=-40 | | 2a-2=16 | | 2w+1=-23 | | 18=1218 | | -7t-4=-46 | | -6-2w=-16 | | -7-6b=-37 | | 4t-6=-30 | | -1-7t=-57 | | 6+6m=-18 | | 6x^2+4(x^2-1)= | | 6d-6=-18 | | 8-3b=2 | | 5b+1=-54 | | 7a+4=81 | | -3-3b=3 | | -10-5d=5 | | 8+6d=-22 | | -5w+2=-53 | | 2-6k=-52 | | 9-6k=-63 | | 4a^5-2a^5+4b+b= | | -5n-8=17 | | -6n-2=-26 | | 8-5n=-37 | | 4a+6=-18 | | -3t+10=25 | | 6k+9=51 | | -3k+8=20 | | 7+7a=7 | | -9-2m=-15 |