If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( N )
N = 0
N = 0
N = 0
N in (-oo:0) U (0:+oo)
9/N = 7/4 // - 7/4
9/N-(7/4) = 0
9/N-7/4 = 0
9*N^-1 = 7/4 // : 9
N^-1 = 7/36
-1 < 0
1/(N^1) = 7/36 // * N^1
1 = 7/36*N^1 // : 7/36
36/7 = N^1
N = 36/7
N = 36/7
| 10-4t/8=12 | | y=-6x^2-6x+5 | | he=60t-16t^2 | | 25x+17=117 | | 2x+17-5x=-7 | | 113=3x-37 | | 6x+5-x=-2x+26 | | x+23+3x=-24-3x-30 | | s=2t^3-12t^2+9t | | 1/2x^2-x | | (x^3/5*y^5/6*z^1/3)^3/5 | | 2x(x-3)(3x-5)=0 | | 160-y+170-y=180 | | 17x-22=114 | | -8m-(4(11-3m)+10)=10m | | (2y-3)(3y+2)=0 | | log(5x)=4 | | 7c+9.64=-2.32+5c | | 3b-12.5= | | 25x-6x=17+2x | | -7b-b+6=-30 | | 1.76=x/2-x | | 2y-3x=5xy | | 5x^2-6x=11 | | -(6y+2)-(5y-7)=5 | | 48r+18s= | | 2(3z-5(2z-3))=4z-6 | | (-8-6i)(-5-i)=0 | | h(x)=cos(x^3+5x^2-17) | | In(5)+in(x)=1 | | 7-8=18 | | 16x^2-y^2-1=0 |