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)
(1/2)*x = 7/4-(3/x) // - 7/4-(3/x)
(1/2)*x+3/x-(7/4) = 0
(1/2)*x+3/x-7/4 = 0
1/2*x^1+3*x^-1-7/4*x^0 = 0
(1/2*x^2-7/4*x^1+3*x^0)/(x^1) = 0 // * x^2
x^1*(1/2*x^2-7/4*x^1+3*x^0) = 0
x^1
(1/2)*x^2+(-7/4)*x+3 = 0
(1/2)*x^2+(-7/4)*x+3 = 0
DELTA = (-7/4)^2-(3*4*(1/2))
DELTA = -47/16
DELTA < 0
x in { }
x belongs to the empty set
| (-a/-b)=(a/B) | | X-5=68 | | mace= | | 1/4(b-16)=7 | | x+5.5+8=5x-135-4x | | 29x=377 | | 10.5x+63=-2.0+15 | | x+(x+1)+(x+2)=369 | | h(t)=-16t^2+15t+10 | | x^2-10x+1=13 | | 0.25(b-16)=17 | | 5x+26=3x+50 | | 9+x+2=12 | | (4y+2)=12y | | 7x+5+8x-11=180 | | (9/x-3)-(3x/3)=3x/x-3 | | -24=-6u | | 6w+7w-2= | | -3(2/5x)-20 | | (9/x-3)-x=3x/x-3 | | 8(2x+3x+2)=4x+124 | | L^2+0.04L-0.00052=0 | | 4x^2+7=-71 | | L^2+0.04L+0.00052=0 | | 3+5x=9x+3x | | 4x+44y=40 | | 3x+4x=195 | | 3x+2=0.66666667+4.33333333 | | 373=570*(x/100) | | 0.9-x=-18-27 | | -2=4x/5 | | (9/8)^x |