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)
90/n-144/n+10 = -27.76 // + 27.76
90/n-144/n+10+27.76 = 0
-54*n^-1 = -37.76 // : -54
n^-1 = 0.69925926
-1 < 0
1/(n^1) = 0.69925926 // * n^1
1 = 0.69925926*n^1 // : 0.69925926
1.43008474 = n^1
n = 1.43008474
n = 1.43008474
| Log^2x+log^2(x-2)=3 | | 1/x+1/(x+4)-1/7=0 | | 5x-5y+3x+3y= | | -3/7x=6/35 | | n^2-2ny-195y^2=0 | | y+2=4(x+5) | | 1/x+1/(x+4)=1/7 | | (2x-3y)*5+(8-y)*(-4)=0 | | 8x-3(x-1)=-2+7x+7 | | 9a+5c-14a= | | 3e^2x-3=8 | | -4y-3=-8 | | 3r^3+3r^2-60r=0 | | 3/5t-1=5 | | 2/3x-4=5/6x-7 | | x+4=4(4x-2) | | 9x-4-11-x= | | 4r^3+12r^2-112r=0 | | 2x+3/5x-7 | | 4(x+1)+2x=x+7 | | 0.4q-0.03+0.2q=0.7+q | | 3px=51c | | -3(x+3)=7x-1+2(2x+1) | | a=3*b+180/6 | | Log^2(x-4)=6 | | 6x-3+2x+13= | | 5x+10=8x-4 | | 2b^2=98 | | 3b+180/6 | | -4y-3=8 | | 4r^3+36r^2+80r=0 | | 3x^2=363 |