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)
2.1 = 6.2/x // - 6.2/x
2.1-(6.2/x) = 0
2.1-6.2*x^-1 = 0
-6.2*x^-1 = -2.1 // : -6.2
x^-1 = 0.33870968
-1 < 0
1/(x^1) = 0.33870968 // * x^1
1 = 0.33870968*x^1 // : 0.33870968
2.95238093 = x^1
x = 2.95238093
x = 2.95238093
| 2/3(x-4)=3/5(5x-3) | | 6d-6d+3d=18 | | -5x2/5=x | | 2/3x+1/3=-5/3 | | 15t-12t-1=8 | | 2x^2+8x=960 | | -[3x-(2x+5)]=-4-[-3(-2x+4)-3x] | | -8y-10=2y+10 | | -4d+-d-16d-16d+-4d=-18 | | x^2-46x-200=0 | | 0.15+0.2=25+0.16 | | 5/6t+7/8t=123 | | 15.00(17.00+x)=555.00 | | 16=3b+22 | | (5/x)-(3/1)=(10/2x) | | 5/6t+3/4t=133 | | .5m+2.8=3.64 | | (x-1)/(x-6)-(1/2)=(11-x)/(x-6) | | 4z-1=5z | | (4r-5g)(4r+4g)= | | -6q+-3q-20q-9q=20 | | -20/12 | | -5+1/4 | | D-8/5=p | | 24x+8y=56 | | -1/8*2 | | 2x+10/6x+30 | | p=t/y | | 15j-15j+j+2j+2=20 | | c=h+w/2 | | (6/4x)-(3/16)=(3/x) | | -4+.25P=14-.5P |