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)
1-(33/a) = 12 // - 12
1-(33/a)-12 = 0
1-33*a^-1-12 = 0
-33*a^-1 = 11 // : -33
a^-1 = -1/3
-1 < 0
1/(a^1) = -1/3 // * a^1
1 = -1/3*a^1 // : -1/3
-3 = a^1
a = -3
a = -3
| 2.1x=3.1x-3.7 | | 1/2m+3=23 | | -6x-5+3x=31 | | 9=21-cf | | 6a(4a)=24a | | 6y+10=6x+12 | | z^3-125p^3=0 | | x+(x+16)=66 | | -2/7x=6/21 | | 12x-3(4x-2)=6 | | 7e^3x+2=5 | | x=10+2(4) | | (2y)(4y^2)+(3y^2)(5y^2)= | | 3[2-(4m+6)]-3=5(4-m) | | H(x)=180x-5x^2 | | X+x-10+(x+5)=180 | | 2ln^23x=4 | | x+(n+16)=66 | | 3a+4b=5c | | 4x+2(-8)=6 | | 9y^2+6y-12=0 | | 8-5.32= | | 7e(3x+2)=5 | | 1=36+2x+5 | | log(x)+log(x-14)=log(19x) | | X+(x+5)+x-10=180 | | -1/2m+3=23 | | 0.8x+9=8(0.6x-2) | | (3x)+7=-36 | | 4(1-n)+8n= | | 1280=7w | | 18y/9 |