If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( z )
z = 0
z = 0
z = 0
z in (-oo:0) U (0:+oo)
27/z = 3 // - 3
27/z-3 = 0
27*z^-1 = 3 // : 27
z^-1 = 1/9
-1 < 0
1/(z^1) = 1/9 // * z^1
1 = 1/9*z^1 // : 1/9
9 = z^1
z = 9
z = 9
| 15x-[23-6x]-[x+1]=20 | | 0.08x^3-x^2-45=0 | | (4m+2)+5m= | | 10+3=15x-7 | | -3x+6(x+11)= | | 5(n-3)+7(3n-7)=14 | | 3+3(x-2)=12 | | 5f=95 | | -2(6+x)+4=5x+7 | | -2x+7(x+8)=106 | | 1.25x=-.5x-3 | | -2(x+4)=-4+2x | | 1.6(.625x+10)=-10 | | 4x+6=31-x | | 49=-y | | -6z+z^2-72=0 | | 40=8q | | -0.2=log | | 3x+(7+x)= | | 16-y=-2 | | -0.2/log | | -4x+4(5x+13)=-44 | | 7.5x+28=12.5x | | 35+[27-15x]-[18x-30]=14x-[20+5x] | | 2c=9+c | | R/-9=-3 | | 3b+1=5(8-2b) | | 15x-8(0.9418604651)=52 | | -13=f-24 | | 15=1.15x+1.25x | | -(7x-9)=-4+18 | | 3x-60=y |