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)
(3/8)*k = -1/4 // + -1/4
(3/8)*k-(-1/4) = 0
(3/8)*k+1/4 = 0
3/8*k+1/4 = 0 // - 1/4
3/8*k = -1/4 // : 3/8
k = -1/4/3/8
k = -2/3
k = -2/3
| H(x)=16x+5 | | -7n-4=-8n+6 | | 15q-12q=-15 | | -1-10t=-9t-19 | | 4(x+4)=2(2x+8) | | -2-b=10+b | | 13x+3=7x-33 | | 90+40+(-10+5x)=180 | | 4x^2+3x^2=35 | | 4w=10-6w | | u-354=540 | | 4g+15=-11g | | 2x-4/5=3/2-3x | | 8n=20+6 | | 10j-17j=14 | | -3c=-6-4c | | 14g-13g=12 | | 2(n-3)-14=0 | | 8-3x+4-6x=-11 | | 4x-6(x+3)=-6 | | -6-7s=-8s | | 10k=910 | | 5x+2y+3z=32 | | 12z-9z=-3 | | 5(11-3)-30=10 | | -16-9v=-11v | | 4n+2=6(0.33n-0.67) | | 90+55+(x+44)=180 | | p-53=44 | | -2x+4(3x-3)=-102 | | r+3=-6.05 | | -16t^2+100t+20=0 |