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*x = 1-8/x // - 1-8/x
3*x-(-8/x)-1 = 0
3*x+8*x^-1-1 = 0
3*x^1+8*x^-1-1*x^0 = 0
(3*x^2-1*x^1+8*x^0)/(x^1) = 0 // * x^2
x^1*(3*x^2-1*x^1+8*x^0) = 0
x^1
3*x^2-x+8 = 0
3*x^2-x+8 = 0
DELTA = (-1)^2-(3*4*8)
DELTA = -95
DELTA < 0
x in { }
x belongs to the empty set
| 3x-10x/7-6/7=5/4 | | 2x-5+3x=11+4x-6 | | (8+10i)(5-8i)=0 | | 6=h(j)+k | | 10x-6=40x+6 | | 6x-56+3x+12=28 | | 32y+17y= | | 5z+7+1z=-8 | | (5/8)x+(1/16)x=(11/16)+x | | 2.5b+6=10-6 | | 3/4d=9 | | 3(x-8)-4=32 | | 5*-1-(-1-2)=2x-y | | -9=d3/4 | | .4b+6=10-6 | | .19x+x=110 | | x+x+50+10+30=x-180 | | y=-28x+14 | | 5d+8=2d-17 | | 5x+2(3-x)+1=-16 | | y=2+1.333333333x | | 8x-5=28x+10 | | 3(3-3/4x)=4-(1/2x-1) | | 56=22(2x+4y) | | 3ab+7b=5ab+4 | | 1/3(x+2)=5 | | F-E+V=2forF | | 23-9=-2d | | 2(x-1)+6x=4(y-1)+2 | | -7+1/2(-6x+8)=20 | | 1/3(x+2)=15 | | w+4/3=2 |