Question 837990
I cannot tell if the P belongs in the denominator or if P is being multiplied by the entire fraction, so I will solve this based on both scenarios.


If the P is part of the denominator, solving for P will go as follows:


1.  Subtract 1 from both sides of the equation:


N - 1 = 2/9P + 1 - 1 -----> N - 1 = 2/9P


2.  Multiply both sides of the equation by 9P -----> {{{9P(N-1)=2}}}


3.  Divide both sides of the equation by 9(N - 1) -----> {{{P=2/(9(N-1))}}}


If P is being multiplied by 2/9 and is not part of the denominator:


1.  Subtract 1 from both sides of the equation:


N - 1 = (2/9)P + 1 - 1 -----> N - 1 = (2/9)P


2.  Multiply both sides of the equation by 9 -----> 9(N - 1) = 2P


3.  Divide both sides of the equation by 2 -----> {{{(9(N - 1))/2 = P}}}