So firstly, add px onto both sides of the equation: 
Next, add 2 to both sides of the equation: 
Next, factor out -x on the right side of the equation: 
Next, divide both sides by (8 - p): 
Lastly, multiply both sides by -1 and <u>your answer will be
</u>
Y= -5.8 is the correct answer
The answer is Mary, Mary got 88% Ben got 86% and Jim got 85%
Step-by-step explanation:



or

Hope it will help :)