Need help with simple math problem

[Nystul]

N = R + ( (R/3) * (P/2) )

I want to move P to N ='s place and N somewhere inside the formula.

For R not equal to zero:

N = R + ( (R/3) * (P/2) )
R + ( (R/3) * (P/2) ) = N
(R/3) * (P/2) = N - R
P/2 = (3/R) * (N - R)
P = (6/R) * (N - R)
P = (6N/R) - 6

Hopefully I haven't made any goofs. Algebra 1 was a long time ago.