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)
2/8 = 3/x // - 3/x
2/8-(3/x) = 0
2/8-3*x^-1 = 0
-3*x^-1 = -1/4 // : -3
x^-1 = 1/12
-1 < 0
1/(x^1) = 1/12 // * x^1
1 = 1/12*x^1 // : 1/12
12 = x^1
x = 12
x = 12
| -8y-3=-7y-9 | | -3u+17=-7(u-3) | | 4p-4=12 | | 50/x=18 | | 0=(-5n)+(-2n) | | 47-y=40 | | -4x+7=2-3x | | x^6-2x^3+6=0 | | 11-5=x/3 | | 3-9=-2z | | 10a-3(2a+5)=15 | | 6+-8=2+11 | | W-13=-25 | | 7x-20=8+8x | | 3i(6-5i)-4(2+3i)= | | 6x^5-121x=0 | | 0.5x-6.7=35 | | 5(2x-5)(5x+4)=0 | | 9y=3(1)+27 | | C=9/7(k-27) | | 2-10=15 | | 18=-5v+2(v+6) | | 33+33= | | 22=181/4× | | 5/6x-7=5 | | 5x^2+28=0 | | 4/15=w/37.5 | | .5x+.3y=.36 | | 2*3x^2/3x^3 | | 6x-5=-2x+59 | | 9y=3(0)+27 | | -18=-6w+2(w-3) |