You can put this solution on YOUR website! 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 ----->
3. Divide both sides of the equation by 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
