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)
(7/2)*x-5 = 4/x+1 // - 4/x+1
(7/2)*x-(4/x)-5-1 = 0
(7/2)*x-4*x^-1-5-1 = 0
7/2*x^1-4*x^-1-6*x^0 = 0
(7/2*x^2-6*x^1-4*x^0)/(x^1) = 0 // * x^2
x^1*(7/2*x^2-6*x^1-4*x^0) = 0
x^1
(7/2)*x^2-6*x-4 = 0
(7/2)*x^2-6*x-4 = 0
DELTA = (-6)^2-(-4*4*(7/2))
DELTA = 92
DELTA > 0
x = (92^(1/2)+6)/(2*(7/2)) or x = (6-92^(1/2))/(2*(7/2))
x = (2*23^(1/2)+6)/7 or x = (6-2*23^(1/2))/7
x in { (6-2*23^(1/2))/7, (2*23^(1/2)+6)/7}
x in { (6-2*23^(1/2))/7, (2*23^(1/2)+6)/7 }
| (4v-4)/3=((v+1)/6)+2 | | =x^2+22x+72 | | 11+21(11)=(13+c)13 | | 12y-10=-11+9y | | 3(x-6)/4=4x+6 | | 3(2n+1)+4(n-2)= | | h/2+7=10 | | 1=n/4-1 | | 20=5x+7x^2 | | 14=9-p | | 2+x/5=0 | | 4+b/-2=-2 | | 0=14d+8d^2 | | (6+y)(2y+5)=0 | | 12x+15=5x+62 | | 5x+x-4=-4 | | 2/3x-1/2y=12 | | (6x-4)-(2x+5)= | | 2/10=b/5 | | Y-12X+4Y+16=0 | | (13a+9b)-(2a-4b)= | | -2(w+4)=2w-24 | | 4y+3=-21 | | 72=9y+36 | | 4(-x-2)+3=15 | | -(-6x+5)=-(x+5) | | (9+7i)/(-10+8i) | | -1+m=-7 | | 3.72x+16=13.8384+4x | | 1/4(2x-3)=7 | | x^4+2x^3-8x=16 | | 16=-4(2x-2) |