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)
6/x = 3/7 // - 3/7
6/x-(3/7) = 0
6/x-3/7 = 0
6*x^-1 = 3/7 // : 6
x^-1 = 1/14
-1 < 0
1/(x^1) = 1/14 // * x^1
1 = 1/14*x^1 // : 1/14
14 = x^1
x = 14
x = 14
| 480-8y=8 | | -2=w/-5 | | 6+w=12 | | 2(5x-31*x)= | | 9e-2=5e+26 | | 22x+26=48 | | y=0(8)+8 | | 120=(x+1)(x+20) | | 10/5x^2-20x-60=0 | | 3/4*6=c | | 2(5x-31)(2x)= | | -7(x+1)=43 | | -27+s=42 | | p+1/4/3=4/5/8 | | 26-2x=16 | | 6x^2+(-10x)+6+4x+(-5)= | | 22-2=4 | | -5x+6(3x-6)=-15-8x | | 7(2x+5)-7=32 | | 2x+(-6x)+(-5x)= | | 7/11x+(-17)=4 | | J/7=10-9j | | 11x+7=51 | | 12=(3m-17) | | (-6x)+(-x)= | | (-3x)+(-4x)+3x= | | 3=278y | | 1/3+2/3 | | -3/4m=-9/16 | | P+11/3=45/8 | | 3x/5-x/3=4 | | 7x+(-6x)= |