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)
x-(2/x)-(7/2) = 0
x-2*x^-1-7/2 = 0
1*x^1-2*x^-1-7/2*x^0 = 0
(1*x^2-7/2*x^1-2*x^0)/(x^1) = 0 // * x^2
x^1*(1*x^2-7/2*x^1-2*x^0) = 0
x^1
x^2+(-7/2)*x-2 = 0
x^2+(-7/2)*x-2 = 0
DELTA = (-7/2)^2-(-2*1*4)
DELTA = 81/4
DELTA > 0
x = ((81/4)^(1/2)-(-7/2))/(1*2) or x = (-(-7/2)-(81/4)^(1/2))/(1*2)
x = 4 or x = -1/2
x in { -1/2, 4}
x in { -1/2, 4 }
| 2/3y+6=y | | 2m+3(x-8)=1 | | 12-h=-h+3y | | -0.5x^2+2x+6=0 | | 82-(9-13)(9)= | | 0.5x^2+2x+6=0 | | 3x-1/4y=-2 | | 3y-1/4x=-2 | | 8x^2-5x-6=0 | | 8x-2=9x+7 | | 7y+6/1=32 | | 3.1x+25.8=P | | x/3-4=x/5 | | 3.9=9.2 | | 1=5+y | | 8x^2+18x-8=0 | | 1/2(x+8)-15=-3 | | 10g+16-12-7g= | | x^2-5x+6=2x | | x/50=5014 | | x^2-18x+68=0 | | 4(x+26x-360)=0 | | 5y+6x=35 | | 7-13=z/-5 | | 5y=16x^2z | | -7v-4=17 | | 4(x+17x-200)=0 | | 8x^2+23-823=0 | | 8x^2+23-823=0 | | 0.02(x-100)+0.04x=72 | | 3x+y+5z=12 | | P=3.1x+25.8 |