If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( k )
3*k-9 = 0
3*k-9 = 0
3*k-9 = 0
3*k-9 = 0 // + 9
3*k = 9 // : 3
k = 9/3
k = 3
k in (-oo:3) U (3:+oo)
(4*k-6)/(3*k-9) = 1/3 // - 1/3
(4*k-6)/(3*k-9)-(1/3) = 0
(4*k-6)/(3*k-9)-1/3 = 0
(3*(4*k-6))/(3*(3*k-9))+(-1*(3*k-9))/(3*(3*k-9)) = 0
3*(4*k-6)-1*(3*k-9) = 0
9*k-9 = 0
(9*k-9)/(3*(3*k-9)) = 0
(9*k-9)/(3*(3*k-9)) = 0 // * 3*(3*k-9)
9*k-9 = 0
9*k-9 = 0 // + 9
9*k = 9 // : 9
k = 9/9
k = 1
k = 1
| 2=6+u | | 12x^2+8x=9 | | .3x=30 | | 14-x=x-6 | | B=4+3 | | -30=-5u | | 40=x^2(250) | | x+2=340 | | 1/3y-6=1/6y | | 5a-3=a^2 | | 23-x=143 | | Y=4/3(3y)-1 | | 3(x-4)-(5+2x)=22 | | 49.10/2.10 | | 5.17t=1.79t-3.38 | | 3/7t=12 | | 2.10/49.10 | | 2x+8+5x=11+3x+9 | | 5-8=4 | | 5(3y-6)-(9y+5)= | | 6-4b-6=0 | | 35+x=25+3x | | 29+8v=-3v+6(4v-6) | | x-19=6x-4 | | 5y-8=4 | | 50-6=14-10x | | 29+8v=3v | | 9x+36=11x-22 | | 62=17-5w | | 9(7-x)=63-27 | | F(3)=4x^2+3x-7 | | 25x+75y=4225 |