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)
27000/19 = 150/x // - 150/x
27000/19-(150/x) = 0
27000/19-150*x^-1 = 0
-150*x^-1 = -27000/19 // : -150
x^-1 = 180/19
-1 < 0
1/(x^1) = 180/19 // * x^1
1 = 180/19*x^1 // : 180/19
19/180 = x^1
x = 19/180
x = 19/180
| 5=b-2.3 | | 17x=-16y | | 2n/80= | | (5/2)x-4/5=-3x-1/5 | | 2(15+-1.5y)-20= | | -3.4x+2.9x= | | 2x-20+3y-10= | | 3y-10=180 | | p=9(7)+5 | | -2.1x+4.9x= | | 3x+7y=2x+4y | | 3y-10=360 | | 2x-20+110-4x+x+10=180 | | 2x-20+110-4x+x+10=360 | | 2(8)=3-(2x) | | 2x-20+110-4x+x+10=270 | | 3y-10=-110 | | -8x+2y+13=0 | | 2(-45)-20= | | 2x-20+110-4x=180 | | 8x-2y-13=0 | | 16x^2-29+12=0 | | 1/2.(10/3x-2/3) | | (-270+3y)+10=360 | | (-270+3y)+10=180 | | (-270+3y)+10= | | 2(-270+3y)-20=360 | | 2(-270+3y)-20=180 | | 2(-270+3y)-20= | | 2x-20+x+10+110-4x+3y-10=360 | | 5m-w(m-5)=17 | | 3x-4=9x-20 |