If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( k )
k = 0
k = 0
k = 0
k in (-oo:0) U (0:+oo)
3/k = 5/14 // - 5/14
3/k-(5/14) = 0
3/k-5/14 = 0
3*k^-1 = 5/14 // : 3
k^-1 = 5/42
-1 < 0
1/(k^1) = 5/42 // * k^1
1 = 5/42*k^1 // : 5/42
42/5 = k^1
k = 42/5
k = 42/5
| 9.95=x^(2/5) | | 90=5(3x+6) | | C/2=1/19 | | (x^2+4y)(x^2-4y)= | | C/2=b/15 | | (3+2i)(9+5i)= | | N/9=2/18 | | -203=-7(-4r-3) | | 13/6=1/a | | 28=6y | | 80r-125= | | 1/3=x/22 | | 5/6=5/s | | n+7(5n+3)=237 | | 4(x-6)=x-9 | | 3/7=z/27 | | 4(x-12)=x | | 1=10-3f | | -7(x+2)+2x+5=6x+9 | | 7w+48=13 | | 104=8(n+7) | | R/8=3/29 | | sin^8+cos^8=1 | | 3longx=6 | | X-7=29-x | | Y/3=1/5 | | -32p-6(5-6p)=2(p-5)-4 | | 17+4x=9x-4 | | p^2=15 | | 4/a=7/18 | | 92=5v+6(v+8) | | 3=-4(1)+5 |