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)
(3.82*98)/x = 500 // - 500
(3.82*98)/x-500 = 0
374.36*x^-1 = 500 // : 374.36
x^-1 = 1.33561278
-1 < 0
1/(x^1) = 1.33561278 // * x^1
1 = 1.33561278*x^1 // : 1.33561278
0.74872 = x^1
x = 0.74872
x = 0.74872
| (5+2y)2=25+20y+(4)2 | | -8x+3=-29V | | 4U-46=-7(u-6) | | 7x=2.5+8x | | 5(x)=-15 | | 18x^2-67x-63=0 | | 14.9=6.8+0.9b | | 3a+5c=2b | | 14.9=8.6 | | -3m+2=2m+11 | | 6(2x-1)-4=7x | | 13k-5k=16 | | 4/9x54 | | 6x+x^2=-1 | | 16-j=-2 | | (2x+1)x^2=25 | | 10=16-z | | -3(c+-12)=18 | | 13-q=12 | | 4y-17=3y | | 5(2x-9)-(9x-8)= | | 3.5x-1.5x=-22 | | 3ln(x)-5ln(x)=6 | | -6(2t+4)=-72 | | 15x+20y=540 | | x^2-50x+450=0 | | x^2-50x=450 | | 8x-20=-2x+70 | | 8(3s+6)=72 | | 10x+15=5x-35 | | 2t-6x=2 | | 2x-6x=2 |