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)
5/4 = 49/x // - 49/x
5/4-(49/x) = 0
5/4-49*x^-1 = 0
-49*x^-1 = -5/4 // : -49
x^-1 = 5/196
-1 < 0
1/(x^1) = 5/196 // * x^1
1 = 5/196*x^1 // : 5/196
196/5 = x^1
x = 196/5
x = 196/5
| (3/2x+20) | | x^2=18-7x | | 9x+24=6x+18 | | r-9=(-1) | | 6x-34=204 | | x^4+48=19x^2 | | 10x-4=2x+(-8) | | 3/2x+20 | | 48+4y-15=13y-9-2y | | -(12j-v)= | | x^3-4x^2-21x-216=0 | | 100=3x*5 | | r-3=(-7) | | 5x+(-8)=(-2x)+(-6) | | 51/4/32/3 | | -4x-4(17+2x)=16 | | 5b^3+34b^2-7b=0 | | 8+r=(-7) | | x+3(-6)=-16 | | x/16-5/8=(x+6)/8 | | 7/10x=84 | | 10(-16-3y)+6y=-16 | | 7+r=(-3) | | y=1/3*0.3333-2 | | 6w^4*x^2-8u^2*x/4x^3 | | (-2)+r=8 | | 2(p-1)=3p+2 | | y=1/3(-2)-2 | | y=1/3(2)-2 | | z^2-4z-8=0 | | 4x-4=2x-34 | | y=-2(-3)-8 |