If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( a )
a = 0
a = 0
a = 0
a in (-oo:0) U (0:+oo)
2-(3/a) = 0
2-3*a^-1 = 0
-3*a^-1 = -2 // : -3
a^-1 = 2/3
-1 < 0
1/(a^1) = 2/3 // * a^1
1 = 2/3*a^1 // : 2/3
3/2 = a^1
a = 3/2
a = 3/2
| 7x-1=x+17 | | 17x+28+8x=-12+x | | (-40x^8)^(1/3) | | 5h=5h+(18.59-5h) | | (7+w)(5w+2)=0 | | 10-6=5 | | 4(a-2)=a+7 | | x+30=6x | | 4(x-2)+9=x+5 | | 6*3=(x*5)-(x*2) | | (x-2)(x-11)=0 | | x+25=17 | | -3t+1=9 | | 2cos^3x+cos^2x+2cosx-1=0 | | 3(17-5y)=25 | | 2x+7=3(14-x) | | x*x+y*y=4225 | | 9x+2=90 | | 6241-y*y+y*y=0 | | (9*x)+(9*2)=90 | | log(7)+log(x)=0 | | h=5h+(18.59-5h) | | 4-1/x=11 | | (3x-6)(3x-6)= | | Sin^3x=sinx | | (-4x^7y)(x^7y^2)= | | (xy)/(-4xy) | | 3x+5x+16x=180 | | 3x+5x+6x=180 | | g^2+13g=140 | | 30n^2+204n+144=0 | | (3-z)(3z-1)=0 |