If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
8/360 = 40/x // - 40/x
8/360-(40/x) = 0
8/360-40*x^-1 = 0
-40*x^-1 = -1/45 // : -40
x^-1 = 1/1800
-1 < 0
1/(x^1) = 1/1800 // * x^1
1 = 1/1800*x^1 // : 1/1800
1800 = x^1
x = 1800
x = 1800
| 10(x+4)-9(x-3)=8 | | 3(x-7)=x+13 | | 2.27-s/4=2 | | 3(x-7)=x+133 | | 4=2y-3 | | -21x-7=-x+53 | | 8a+2=6a+4 | | 3m+1=m+1 | | X-3=-12x+10 | | x^2+y^2+x+y-96=0 | | 36=-0.5x^2+108 | | 2y+7=-2y-1 | | 4/9/x=12 | | (2x+3y-4)dx+(-4x+y+1)dx=0 | | 7x-3.5=-4x-3.2 | | 2-2x=6-1x | | 5/9÷15/36 | | x^5-125x^3+484x=0 | | 20-8.50= | | x^2-2mx+8m=0 | | 27=6+3y | | -10=u/5-5 | | x(5x^2-15x-1)=3 | | X+6x=100 | | 6a+4b-5a-b+3= | | (x^2)/3=7/2 | | x^2/3=7/2 | | 9(x+11)=-6(x-20) | | 3(a+2)+4(a+5)= | | -k-3+k^3-3k^2=0 | | (x-1)/4-3=(x-7)/3 | | 25=625-50x |