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)
2.2 = 7.3/x // - 7.3/x
2.2-(7.3/x) = 0
2.2-7.3*x^-1 = 0
-7.3*x^-1 = -2.2 // : -7.3
x^-1 = 0.30136986
-1 < 0
1/(x^1) = 0.30136986 // * x^1
1 = 0.30136986*x^1 // : 0.30136986
3.31818185 = x^1
x = 3.31818185
x = 3.31818185
| .12y+0.07(y+2000)=1470 | | 10d-6=4d-15-13d | | 8/17X=48 | | -5(1+8a)=-5-4(7a-6) | | (-25.181)+6.3+(-31.3)= | | x^5-x^4-7x^3=0 | | 3x/2-8/3=2/3x | | x-3(4x+8)= | | X=6.8/2.8 | | 10x+29(x-2)=410 | | 8+2(4x-5)=6-3(2x+1) | | 5x-10+4=3x-3-1 | | 2(a-1)=22 | | 160=-8(6n-8) | | 11x^2-28x-7=0 | | 2/5/n=5 | | 5/4=x/13 | | 8/3=2/3u | | 9=2(c+1) | | -6n-4(-8n+7)=102 | | X=5.1/7.3 | | n+(n+2)=-298 | | -(1-8n)+6n=1+2(8n+3) | | 7y-63/7y | | 2.3=7.4/x | | 2/3x-7=1/4x-2 | | 4+2(5x-5)=5-5(2x+1) | | -82=6u-11u-17 | | 3x-4(x-3)=7-3x | | 3n-18=-3(n+2) | | [2*(x-4)]+7=25 | | 26=-4-10n |