solve for a variable in an equation, then do laplace transform

i have an equation that needs to solve for my variable "A" in the script, but i don't think i did it correctly, or if there is a better way?? then once it solves, i need to transform it back into the time domain. any suggestions?

i = V/(R+R2)

Vo = (R2/(R2+R))*V

syms s t

Cs = 1/(C*s)

Ls = L*s

R23 = 1/((1/R2) + (1/R3))

syms A

solve (((A-(V/s))/(R+Ls) + (A-(Vo/s))/(Cs) + (A/(R23)) = 0), A)

Answer 1

[katerina jablonski]

oh i just added the single quotations, i think it's better.