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)
8/10 = 4/n // - 4/n
8/10-(4/n) = 0
8/10-4*n^-1 = 0
-4*n^-1 = -4/5 // : -4
n^-1 = 1/5
-1 < 0
1/(n^1) = 1/5 // * n^1
1 = 1/5*n^1 // : 1/5
5 = n^1
n = 5
n = 5
| 5(m-2n)-(2m-n)= | | x^2-40x+10000=0 | | 1/4x-1/4=3/4 | | p+p(.20)=1450 | | 9+9(.20)=1450 | | (6)/(7n^2)-(4)/(21n) | | 3x-46=26 | | 30/5a | | 3x-0.1=1.4 | | 5v-(3v-6)=10 | | 3x-0.1=14 | | 28x+60=20x-48 | | 4d+8=3D-15 | | 9x+3=33 | | -1/3y-1/5=y-2/3 | | 6x-7/4=-5/2x-4/3 | | -3^3/-3^2-5 | | -8x=-13 | | .2x+30=40 | | .05x+750=.09x+500 | | 2(h-2)=-3(h+3) | | 3(5+3)-4x(6-4)= | | X+18=-39 | | 4x+3y=9.55 | | 11j-4j=15 | | 10x-8=6x+40 | | 2x+18=7x+13 | | 3(2c+2)=-4(5-c) | | 6(w+-10)=-2(4+2w) | | (4x-35)/3 | | 5n+5=3+3n | | 85-2x=98-3x |