Can someone please solve Rp=R1 R2/R1+R2 to make R the subject!
And for a bunus C=N-n/2p to make p the subject.
Thanks so much!!
Your first question doesn't make sense, since you don't have $\displaystyle R$ as a variable.
Are you trying to make $\displaystyle R_1$ or $\displaystyle R_2$ the subject?
Q.2) $\displaystyle C = \frac{N - n}{2p}$
$\displaystyle 2Cp = N - n$
$\displaystyle p = \frac{N - n}{2C}$.
$\displaystyle R_p = \frac{R_1R_2}{R_1 + R_2}$
$\displaystyle R_p(R_1 + R_2) = R_1R_2$
$\displaystyle R_1R_p + R_2R_p = R_1R_2$
$\displaystyle R_1R_p - R_1R_2 = -R_2R_p$
$\displaystyle R_1(R_p - R_2) = -R_2R_p$
$\displaystyle R_1 = -\frac{R_2R_p}{R_p - R_2}$
$\displaystyle R_1 = \frac{R_2R_p}{R_2 - R_p}$.