If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x-5 = 0
x-5 = 0
x-5 = 0
x-5 = 0 // + 5
x = 5
x in (-oo:5) U (5:+oo)
(4*x-b)/(x-5) = 0
4*x-b = 0 // + b
4*x = b // : 4
x = b/4
x = b/4
| 2x+-31=2-31 | | 9a-7a+4=-10 | | -55+9x=14+6x | | 2x+-31=-2-31 | | 7x-16=22 | | 1=.04 | | 4n-9=79 | | 13x+19=-3x+18 | | 1=0.04 | | 15x-4= | | 10=-3r-2r | | 7x-1.8=-4+.4 | | (5ab+2)(5ab+5)= | | abs(7/x-2)=14 | | -4(5x+9)=4(-6x-10) | | 2(4x-5)=12-18 | | 19x-12-4a=57 | | m/7×4=-8 | | -2-(4-2p)=0 | | M+n+1=0 | | 3^0/2-3 | | 13-h=24 | | 1/3(3z) | | -78x+52=-52x+78 | | -6v+2(v-3)=-14 | | x-4/y-2 | | 8+2z-1=9z+17-5z | | 6x+24=-3(x+7) | | -6=5k+k | | F(x)=15x^2+360 | | Lnx^2=100 | | K=8k+25 |