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)
K/(-3) = 4 // - 4
K/(-3)-4 = 0
-1/3*K-4 = 0 // + 4
-1/3*K = 4 // : -1/3
K = 4/(-1/3)
K = -12
K = -12
| 5x+4y=48 | | (1-lnx)/(x^2)=0 | | z/8-9=1 | | 15x-36+2x-12=564 | | v*10=10 | | (1-lnx)/x^2=0 | | 4(5h-3)=13 | | 1/8-3/7-3/8 | | 2x^2-by=8 | | f(x)14-0.5xf(x)=30 | | 2b-a/a-2b | | Lnx-ln(8-5x)=2 | | 0.94+0.49S=S | | 6+65x=52x+10 | | .10x+6=2x | | 3(2m-1)=(5m+1) | | 3(1+5a)-34a=29(a+15) | | 7x+6=56-3x | | 15x-36+2x-12=94 | | (x-1)/(-4)=-6 | | b^7/b^3 | | 15x-45=9x | | 3x-8+6=24-2 | | -4-7w=-8w | | 3x-11=19-7x | | 5x-45=9x | | 7+w=10 | | 0.77+0.35S=S | | 14x=2x+60 | | (3w-8)(1+w)=0 | | 3r-2=-6r-8+7r | | V^2-48=2v |