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)
40/n = 15/2 // - 15/2
40/n-(15/2) = 0
40/n-15/2 = 0
40*n^-1 = 15/2 // : 40
n^-1 = 3/16
-1 < 0
1/(n^1) = 3/16 // * n^1
1 = 3/16*n^1 // : 3/16
16/3 = n^1
n = 16/3
n = 16/3
| 5x+30=3(5x+80)+25 | | Y=1-7x/9 | | 18x+40=11x-4 | | -y+3x-5=0 | | n/12=4/3 | | 5b+11-3b-5=32 | | 4(8-1)= | | 0.25x+3.5=9.5 | | 2(2y-2)+4=4 | | 4x+14=2x+60 | | n/7=20/28 | | 14/22x3/9 | | 38=8f-2 | | 13=2c+3+7c | | 3x+7x=300-5 | | z/8+2=3.25 | | 4(x+3)+24= | | A-5(a+3)= | | 46=4k-2 | | 3n/4=18/8 | | 3x+12=-2x-17 | | 12r+3r=225 | | ln(4x+4)=5 | | 3-3(6)+2=-13 | | 12p-q+r^2=q | | 10h-4=36 | | y=1.9x+35 | | -x+4x=5 | | 1.8/100=x/156 | | 3x+7x=3005-x | | 2y-5(8-y)=2 | | (x)(x+2)=288 |