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 = 6/x // - 6/x
3-(6/x) = 0
3-6*x^-1 = 0
-6*x^-1 = -3 // : -6
x^-1 = 1/2
-1 < 0
1/(x^1) = 1/2 // * x^1
1 = 1/2*x^1 // : 1/2
2 = x^1
x = 2
x = 2
| x^3+14x^2+36x=42 | | 3/2t-1=1/2 | | 5/6×=5/14 | | =(3+5+3+5)7+2(3)5 | | 3x+14+2x+19+6x+12= | | r^2-6r=160 | | 8+n=37 | | 3z+5z-12z=25-(-17) | | (X+4)+6=20 | | x=20+1.66y | | 135(t-6)=-0.4 | | X+4+6=20 | | -6x-4=2x+60 | | 9x+12y=2550 | | -8=2p+4 | | (14v^5-4v^4)/(2v^2) | | 12a^2+6a^3-3a^3-2a^2-5a^2-8a^4= | | Z^2-6z+90=0 | | 16-3(8-5)2/5 | | (-2/3)^n | | 12z-12g+11g-7z= | | 11x-3x+8=5(x-2)+3x | | 2500= | | -3tb=6n+22 | | 11x-3x+8=5(x-2)+3 | | 16=a/0.2 | | 3p+6=8p+1 | | (4u+3)(4u+3)-(6u-3)(u+2)=2u(6+5u)+9 | | 12x-12x+11x-7x= | | 5(x-2)-8=4(x+12)-1 | | 4n+3n=16 | | 7+6m=8n-13 |