# Math Help - give equation making total capacitance the subject?

1. ## give equation making total capacitance the subject?

what is the equation for making the total capacitance the subjet?

many thanks

2. Let $C'$ be the total capacitance.
Capacitance of capacitors in parallel $= 2C$
now: $C' = 1/(2C) + 1/C = 1/C'$
$C' = 3/2C$
$(2C')/3=C$