If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
1/6 = (a-3)/9 // - (a-3)/9
1/6-((a-3)/9) = 0
(-1*(a-3))/9+1/6 = 0
(-1*6*(a-3))/(6*9)+(1*9)/(6*9) = 0
1*9-1*6*(a-3) = 0
27-6*a = 0
(27-6*a)/(6*9) = 0
(27-6*a)/(6*9) = 0 // * 6*9
27-6*a = 0
27-6*a = 0 // - 27
-6*a = -27 // : -6
a = -27/(-6)
a = 9/2
a = 9/2
| y=x^2+5x+5x+15 | | 4+15z-1=9z+15-6z | | 7r-9=-63+r | | ((w-6)/3)-8=(w-4)/5 | | 7r-9=63+r | | (2x-3y-6)(2x-3y-6)= | | u^2+29u=0 | | 22=10+m+6 | | 5(5y+5)+10=4(4y+2)+16 | | y=0.163(49.43)+3.093 | | 7x+14=-56 | | g^2-24g-25=0 | | (3a-5b+3)(2a+6b-1)= | | 2j^2-31j+15=0 | | s^2-32s=0 | | v^2-23v-24=0 | | 5b-2(b-9)=3+4b | | 5r^3s^4t^5/15rs^3t^5 | | 4d^2+7d+3=0 | | (x-7)r+a=x+2a | | f^2-37f=0 | | 29.83=0.163(164)+x | | 5(3y+2)=-25 | | g^2-2g-8=0 | | d^2+13d=0 | | x^2-y^2-8x-8y-1=0 | | 12(x-2)-3=16x-71 | | 3(5m+4)=4(2n-1) | | 4.1z=28.7 | | 851.4/.99 | | h=13+23t-16t^2 | | -9(x+6)+481=24+25 |