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)
54/a = 9/10 // - 9/10
54/a-(9/10) = 0
54/a-9/10 = 0
54*a^-1 = 9/10 // : 54
a^-1 = 1/60
-1 < 0
1/(a^1) = 1/60 // * a^1
1 = 1/60*a^1 // : 1/60
60 = a^1
a = 60
a = 60
| 1/4.x=12 | | 3/8=b/32 | | 2x+3=16(2x-3) | | 5-8n=61 | | 9/7=63/× | | 3/4x# | | x/.5=.13/1 | | 8=v/3+3 | | 3(9a+4b)-8(a+2b)= | | 218.75=35x-0.7x^2 | | N/49=2/7 | | -44=5x+6 | | 685=x+3(.15*x) | | 3p+12=-6(2p-7) | | -1.4x+35=0 | | 685=x+3(.2*x) | | 2x+32=3+8x-7 | | 36=-3a-3 | | y+71=2x | | 6-8x-2=-46+4x-10 | | -4x^3-12x^2+x+3=0 | | 4+9x=103 | | 10(9a+9b)-9(a+8b)= | | F+f+3=9 | | s=2(ab+ax+bx) | | -3+9(x-3)=13x+5-4x | | 6h-4/5=4 | | 33=-6r-3 | | Y=-0.026x^2+1.196+46 | | (6+2i)(9+i)= | | 6(z-4)+7z-3= | | X-8/3=1-x/8 |