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)
16/8 = 6/x // - 6/x
16/8-(6/x) = 0
16/8-6*x^-1 = 0
-6*x^-1 = -2 // : -6
x^-1 = 1/3
-1 < 0
1/(x^1) = 1/3 // * x^1
1 = 1/3*x^1 // : 1/3
3 = x^1
x = 3
x = 3
| 1/4+3/2 | | 1+4/7 | | 3/7+3/4 | | 2y+4x-5w=19 | | 1/4+5/4 | | y^2+y+2*y+2=34 | | 3/2-3/7 | | 1-3/7 | | 7/6-1/3 | | 5/3-4/3 | | 5x-6=30x+14 | | 15/8+5/7 | | 15/8-1/4 | | -86-7=8x+19 | | -2x=-y-3 | | 2x+1=5x+10 | | 3x+1=9+4x | | 5v-15=65 | | -5/6+(h+7)/3+(2h-1)/2 | | 11/15-x/y=2/3 | | 46=x/4+16 | | (h+7)/3+(2h-1)/2 | | 11/15-x/x=2/3 | | 73=5v+13 | | 24=30-2d | | 11+4x-5=23 | | C=30-2d | | 2(x+6+2x)=2(16+5) | | 6(x-5)+6=3(x-6) | | 91nx=54 | | 3y+6y+0.5y+4/8y=10y | | (x-19)2=121 |